The link below will direct you to a thread where a KOTOR 2 trainer can be found.
The trainer is quite new though and from what I gather it contains 2 options...
Unlimited Force - never lose force points
Free Items - items are free at merchantshttp://forums.maxconsole.com/showthread.php?s=&threadid=3149
P.S: The trainer was made for the NTSC version of the game so I am unsure
if it will work with the PAL version. Just thought I'd mention that.