Comment 4 for bug 1167003

ok. Then I guess the precompiled plugin just doesn't work for your system. But: you should be able to compile it yourself.
The code for the plugin is in the "filedownload" branch: https://code.launchpad.net/~djfun/catchpodder/filedownload
qmake && make or using Qt Creator (and then replace the .so file, I have yet to figure out, where exactly the plugin should be installed to)