Supporting Windows

I have a custom Windows XP from a friend. I'm trying to install East Asian languages. But when I do it the normal way, it only takes a few seconds to copy the files, and I don't get the languages. It might be because this custom Windows is so minimalistic (the original CD has hardly any files in the LANG folder). (It's still the same when I use a regular Windows XP Pro SP3 CD). Anyway I thought it might work if I knew which files to pull from the XP CD and where to place them. Is this doable? I can do it on another computer so if there was a way to track how the files moved. Or if all the files come from I386 and LANG I can just copy all files there to all the destination folders, if anyone knows what they'd be. Or any other ideas? Thanks.

Also, it won't even allow me to install a new, legitimate Windows from startup now.  (STOP: 0x0000007B)