OK, I have checked and verified that the updator is working.
Just put a new version for the Powers and Enhancements DB up for update.
Please make sure you have the update path set to:
http://sherksilver.coldfront.net/public_ftp/Updates.xml
and the Proxy Server setup correctly if needed.
If you need to update from a real old version, your best bet is to re-download the application and then re-install. (Preserve your saved files first for safety). Then you can get updates correctly.