The official site has removed most VDJ 7 skins, but you can still find them via the "Legacy" section or the Internet Archive (Wayback Machine). Look for files ending in .zip or .vdk .
The community forums still have sticky threads with user-uploaded packs. Search for "VDJ 7 Complete Skin Pack 2020" – users often bundle 50+ skins into one ZIP file.
Here are the only two safe places to look: