Comment 5 for bug 728351

I faced the similar problem, there is no solution found to resolve this issue. After trying out various methods finally I was able to resolve the problem & now it is working well on Windows 2008 64 Bit system.

Solution

You will face the problem with OpenERP Report Designer with OpenOffice 3.4.1. on windows2008 or win7 64 bit
If you use OpenOffice 4.0 then the issue can be resolved.
You may continue to face the same error even after uninstalling OO 3.4 and reinstalling OO 4.0.

Follow the following step
1. Uninstall OO 3.4
2. Manually remove the OO 3.4 Installation folder from ..\Program Files\Open Office 3.4 installation folder
3. manually remove user specific OO folder located in ..\Users\Administrator\AppData\Roaming\OpenOffice
4. Install OO 4.0
5. Install the OpenERP Report Designer plugin

Now you should be able to connect OO with OpenERP system & Modify/Create the Reports