SR3 Texture Utilities can recompile .cvbm_pc and .gvbm_pc files, you just need them to be in the same folder as your modified .tga.DDS texture and drag'n'drop .cvbm_pc onto SR3RepackTextures.exe. As for .vcc_pc pack file, I've also tried to do it as guide provides, but game for reasons to me unknown doesn't apply those changes. I did try another way and just put modified .cvbm_pc and .gvbm_pc files into mods folder and it's worked out just fine.
