New version, v0.8.
http://foltman.com/us428/us428v08.zip
Just copy the Reaper_us428.dll into C:\Program Files\Reaper\Plugins (or wherever your plugin directory is) and start Reaper.
Changes:
* EQ knob support
* some fixes (the F1-F3 buttons didn't seem to work at all)
* support for other surfaces is now removed (they're provided by the "normal" Reaper_csurf.dll instead)