packing

Hi there modder's! I was hoping one of you may assist me in a way, I want to use Admixon's re-texture mod on my game HOWEVER his road textures are rather large and because my GPU doesn't have a lot of VRAM it causes a strange bug, the main road is a solid black texture, this however can be fixed...

I'm trying so hard to mod SRTT I've followed a ton of tutorials. Sadly I can't pack the file :/