I need to know what files to open up and edit to change the class skills. Such as, making the Jedi Guardian default class skills different than they already are, making certain ones cost 1 point instead of two.

I'm pretty sure you can do it by opening skills.2da with Kotor Tool and editing the column labeled jgd_class by changing the value of the skill(s) that you want to make into a class skill to a 1. If you don't understand what I mean...I'm not always the best explainer...open up skills.2da and look at the columns labeled scd_class, sol_class, sct_class, etc. and you should pickup the pattern. Save the new skills.2da file in your override folder.

Thanks! That helped a lot!