Okay. I'm gonna do a semi-necro post, but only to close up my own thread here. Since it's relevant, I guess it's not Necro-ing.
Anyway, I solved the problem.
I couldn't do a reinstall, because some registry problems wouldn't even let me 'uninstall'.
Luckily, I thought to replace the Coruscant file (labled 'COR' inside the DATA file of Lucasarts), with that of the COR file that was on my other computer. I transferred it using a thumbdrive.
It worked! Thanks again everyone that gave their input.