There are now some new updates on Jorgen's website. The previous updates were for the XG Editor and mainly for the PSR-740. The new updates are now complete for the PSR-2000 and add a lot of new Quick Edit screens for both instruments. There is also a additional set of updates for the event list. For some strange reason, XGworks has two instrument definition files, one for the event list and one for everything else, probably because the XG Editor was added later and needed a different format. Look under PSR Software and you'll find two zip files, one marked XGworks and one marked XG Editor. The XG Editor update will stand alone but obviously both would be better.
Note for Tyros owners. Applying the updates and selecting PSR-2000 will get you fairly close to the Tyros, the main differences being that the Tyros has a few more effects, 6 DSPs instead of 4 and a few more voices. One of the guys in the Yahoo PSR Songs group (John Frings) has constructed the XG Editor instrument definitions for the Tyros which is compatible with my updates except for the filename (which you can change accordingly).
Bryan