You can, but you'll need to purchase an XSATA device or some other way to transfer files between your 360 and your PC. There are a few mods out there compatable with the Xbox version. The bad news is the emulation for KOTOR and KOTOR 2 is not very well done. If you are playing this on a 360, you are in for a lot of sound and framerate issues, I'm sorry to say.
BTW- This should have been put in the appropriate forum. Mods, please move.