There's a program called Beyond Compare that can upgrade the files without losing your modifications. There's quite a bit of manual sorting and stuff involved, so it's not quite as easy as just reuploading the files... but sometimes it's easier than reuploading and rehacking.
Grr... I can't think of the address for it right now, sorry. Search some of the forums for "Beyond Compare" and you should come up with posts with links.
---Skorpion
