I'm experiencing the same bug, this time after queuing a hebrew page to be sent from the statistics page, this is the traceback:

2008-12-02 15:20:11 ERROR Zope.SiteErrorLog http://zeta:8080/cancer/portal_newsletters/channels/newsletter-stats.html
Traceback (innermost last):
  Module ZPublisher.Publish, line 119, in publish
  Module ZPublisher.mapply, line 88, in mapply
  Module ZPublisher.Publish, line 42, in call_object
  Module plone.z3cform.layout, line 49, in __call__
  Module Shared.DC.Scripts.Bindings, line 313, in __call__
  Module Shared.DC.Scripts.Bindings, line 350, in _bindAndExec
  Module Products.PageTemplates.PageTemplateFile, line 129, in _exec
  Module Products.PageTemplates.PageTemplate, line 89, in pt_render
  Module zope.pagetemplate.pagetemplate, line 117, in pt_render
  Module zope.tal.talinterpreter, line 271, in __call__
  Module zope.tal.talinterpreter, line 346, in interpret
  Module zope.tal.talinterpreter, line 891, in do_useMacro
  Module zope.tal.talinterpreter, line 346, in interpret
  Module zope.tal.talinterpreter, line 536, in do_optTag_tal
  Module zope.tal.talinterpreter, line 521, in do_optTag
  Module zope.tal.talinterpreter, line 516, in no_tag
  Module zope.tal.talinterpreter, line 346, in interpret
  Module zope.tal.talinterpreter, line 891, in do_useMacro
  Module zope.tal.talinterpreter, line 346, in interpret
  Module zope.tal.talinterpreter, line 536, in do_optTag_tal
  Module zope.tal.talinterpreter, line 521, in do_optTag
  Module zope.tal.talinterpreter, line 516, in no_tag
  Module zope.tal.talinterpreter, line 346, in interpret
  Module zope.tal.talinterpreter, line 949, in do_defineSlot
  Module zope.tal.talinterpreter, line 346, in interpret
  Module zope.tal.talinterpreter, line 536, in do_optTag_tal
  Module zope.tal.talinterpreter, line 521, in do_optTag
  Module zope.tal.talinterpreter, line 516, in no_tag
  Module zope.tal.talinterpreter, line 346, in interpret
  Module zope.tal.talinterpreter, line 957, in do_defineSlot
  Module zope.tal.talinterpreter, line 346, in interpret
  Module zope.tal.talinterpreter, line 536, in do_optTag_tal
  Module zope.tal.talinterpreter, line 521, in do_optTag
  Module zope.tal.talinterpreter, line 516, in no_tag
  Module zope.tal.talinterpreter, line 346, in interpret
  Module zope.tal.talinterpreter, line 891, in do_useMacro
  Module zope.tal.talinterpreter, line 346, in interpret
  Module zope.tal.talinterpreter, line 957, in do_defineSlot
  Module zope.tal.talinterpreter, line 346, in interpret
  Module zope.tal.talinterpreter, line 536, in do_optTag_tal
  Module zope.tal.talinterpreter, line 521, in do_optTag
  Module zope.tal.talinterpreter, line 516, in no_tag
  Module zope.tal.talinterpreter, line 346, in interpret
  Module zope.tal.talinterpreter, line 534, in do_optTag_tal
  Module zope.tal.talinterpreter, line 516, in no_tag
  Module zope.tal.talinterpreter, line 346, in interpret
  Module zope.tal.talinterpreter, line 949, in do_defineSlot
  Module zope.tal.talinterpreter, line 346, in interpret
  Module zope.tal.talinterpreter, line 536, in do_optTag_tal
  Module zope.tal.talinterpreter, line 521, in do_optTag
  Module zope.tal.talinterpreter, line 516, in no_tag
  Module zope.tal.talinterpreter, line 346, in interpret
  Module zope.tal.talinterpreter, line 949, in do_defineSlot
  Module zope.tal.talinterpreter, line 346, in interpret
  Module zope.tal.talinterpreter, line 586, in do_setLocal_tal
  Module zope.tales.tales, line 696, in evaluate
   - URL: controlpanel
   - Line 10, Column 4
   - Expression: <PathExpr standard:'view/contents'>
   - Names:
      {'container': <ChannelContainer at /cancer/portal_newsletters/channels>,
       'context': <ChannelContainer at /cancer/portal_newsletters/channels>,
       'default': <object object at 0xb7c30580>,
       'here': <ChannelContainer at /cancer/portal_newsletters/channels>,
       'loop': {},
       'nothing': None,
       'options': {'args': ()},
       'repeat': <Products.PageTemplates.Expressions.SafeMapping object at 0xe52968c>,
       'request': <HTTPRequest, URL=http://zeta:8080/cancer/portal_newsletters/channels/newsletter-stats.html>,
       'root': <Application at >,
       'template': <ImplicitAcquirerWrapper object at 0xe52922c>,
       'traverse_subpath': [],
       'user': <PropertiedUser 'admin'>,
       'view': <Products.Five.metaclass.MyFormWrapper object at 0xe5299cc>,
       'views': <zope.app.pagetemplate.viewpagetemplatefile.ViewMapper object at 0xe52984c>}
  Module zope.tales.expressions, line 217, in __call__
  Module Products.PageTemplates.Expressions, line 161, in _eval
  Module Products.PageTemplates.Expressions, line 123, in render
  Module plone.z3cform.layout, line 58, in contents
  Module plone.z3cform.layout, line 66, in render_form
  Module z3c.form.form, line 190, in __call__
  Module z3c.form.form, line 143, in render
  Module zope.app.pagetemplate.viewpagetemplatefile, line 83, in __call__
  Module zope.app.pagetemplate.viewpagetemplatefile, line 51, in __call__
  Module zope.pagetemplate.pagetemplate, line 117, in pt_render
  Module zope.tal.talinterpreter, line 271, in __call__
  Module zope.tal.talinterpreter, line 346, in interpret
  Module zope.tal.talinterpreter, line 534, in do_optTag_tal
  Module zope.tal.talinterpreter, line 516, in no_tag
  Module zope.tal.talinterpreter, line 346, in interpret
  Module zope.tal.talinterpreter, line 824, in do_loop_tal
  Module zope.tal.talinterpreter, line 346, in interpret
  Module zope.tal.talinterpreter, line 745, in do_insertStructure_tal
  Module zope.tales.tales, line 696, in evaluate
   - URL: /media/sdb1/change-test/trunk/eggs/plone.z3cform-0.5.2-py2.4.egg/plone/z3cform/crud/crud-master.pt
   - Line 17, Column 2
   - Expression: <PathExpr standard:u'form/render'>
   - Names:
      {'args': (),
       'context': <ChannelContainer at /cancer/portal_newsletters/channels>,
       'default': <object object at 0xb7c30580>,
       'loop': {},
       'nothing': None,
       'options': {},
       'repeat': {},
       'request': <HTTPRequest, URL=http://zeta:8080/cancer/portal_newsletters/channels/newsletter-stats.html>,
       'template': <zope.app.pagetemplate.viewpagetemplatefile.ViewPageTemplateFile object at 0xaed86cc>,
       'usage': <zope.pagetemplate.pagetemplate.TemplateUsage object at 0xe4f1a4c>,
       'view': <collective.dancing.browser.stats.StatsForm object at 0xe529fec>,
       'views': <zope.app.pagetemplate.viewpagetemplatefile.ViewMapper object at 0xe4f1ecc>}
  Module zope.tales.expressions, line 217, in __call__
  Module zope.tales.expressions, line 211, in _eval
  Module collective.dancing.browser.stats, line 84, in render
  Module zope.app.pagetemplate.viewpagetemplatefile, line 83, in __call__
  Module zope.app.pagetemplate.viewpagetemplatefile, line 51, in __call__
  Module zope.pagetemplate.pagetemplate, line 117, in pt_render
  Module zope.tal.talinterpreter, line 271, in __call__
  Module zope.tal.talinterpreter, line 346, in interpret
  Module zope.tal.talinterpreter, line 534, in do_optTag_tal
  Module zope.tal.talinterpreter, line 516, in no_tag
  Module zope.tal.talinterpreter, line 346, in interpret
  Module zope.tal.talinterpreter, line 855, in do_condition
  Module zope.tal.talinterpreter, line 346, in interpret
  Module zope.tal.talinterpreter, line 536, in do_optTag_tal
  Module zope.tal.talinterpreter, line 521, in do_optTag
  Module zope.tal.talinterpreter, line 516, in no_tag
  Module zope.tal.talinterpreter, line 346, in interpret
  Module zope.tal.talinterpreter, line 824, in do_loop_tal
  Module zope.tal.talinterpreter, line 346, in interpret
  Module zope.tal.talinterpreter, line 631, in do_insertText_tal
  Module zope.tal.talinterpreter, line 841, in translate
  Module zope.app.pagetemplate.engine, line 109, in translate
  Module zope.i18n, line 128, in translate
  Module zope.i18n.translationdomain, line 79, in translate
  Module zope.i18n.translationdomain, line 142, in _recursive_translate
  Module zope.i18n, line 166, in interpolate
  Module zope.i18n, line 161, in replace
UnicodeDecodeError: 'ascii' codec can't decode byte 0xd7 in position 0: ordinal not in range(128)