Hey mate, you need to put the original strp_dif_***_h/a.pssg files and the sock_dif_***_h/a.pssg files back in the strips folder (Rugby Challenge 3\data\pc\actors\players\strips

New Zealand is 001, Australia is 002, England is 004, and South Africa is 010  (Tip, if you get Ryder PSSG Editor - it's free - you can drag .pssg files into it for a preview if you're ever looking for something specific....might take a while to find what you're after but most of the kits are grouped by competition).

Hope this helps!