An update is now available for OpenOffice.org 3.0, for Windows.
To install the update, first delete the existing PowerWorshipMP_0.1 directory (e.g. C:\Program Files\PowerWorshipMP_0.1 is the default location) and then reinstall PowerWorship by repeating installation steps 2 through 4, as they are documented here:
The MacOS/Linux installation packages have not been updated yet. I will post a reply when updates are available for MacOS and Linux.