Todd, many folks find upgrading the firmware to be more complicated than it really is. It's a matter of following all the instructions to the letter - no deviation, no shortcuts. Really!
Anyway, you have LOTS of resources for programming help (and perhaps someone to walk you through the the firmware updates). Quite apart from the California forum on RadioReference (it's highly advised you go over there and register - free), there are at least a few Yahoo groups where you might be able to pick up files you can import - namely UASD (or Uniden Advanced System Director) or, with the new version, BuTel files.
http://www.radioreference.comhttp://groups.yahoo.com/group/SCANsacramento/http://groups.yahoo.com/group/SCANNINGCENCAL/http://groups.yahoo.com/group/BCD396T/73 Mike