Ok nvm, i was just apparently editing it wrong. Damn i cant tell which texture sources i must rename, i mean the custom skin i edited over works, but when i check it's texts @ pak-file, it doesnt really makes sense to me. some st6_upperbody etc. files have the custom source on them and some dont, so wtf. Oh well, too much work i guess.
I have problems editing pak01_dir.vpk. I have tried to edit it with notepad++, which is how it's supposed to be done i think, but the game doesn't consider it as valid file after save. Any suggestions about what im doing wrong? Thanks!