My chemistry rating for non-online gameplay only gets to 60 and never increases no matter what happens. This has happened with all teams, and never changes. Where is the patch to fix this?

Also, what type of patches are available in general for this game for PC? After downloading the patch, whatever it may be, how does it install into the EA Downloader/FIFA 10 game? Or does it auto do it when logging in?

Download DB Master 10. You can change chemistry there for any team.

You can change chemistry there for any team.
I doubt that that will solve the problem, since the description fits the team experience issue that has plagued everyone that plays manager mode in FIFA 10 whereas DB Master can only change the default team chemistry values that affect kick off or tournament modes.

i was also failed to fix that... :(

i was also failed to fix that... :(
I have a utility that resolves that issue, amongst others, see the Fix for Team Experience bug in Manager Mode (http://www.soccergaming.tv/showthread.php?t=161953) thread