Right, well, it seems like I didn't pack the custom textures into the map file properly... although i thought i did. Well ill fix that up then. Thank you for letting me know! :)

Yes, they are all pink and black missing texture checkerboards.

uh oh.. that sounds like i havent packed the bsp properly... although i thought i did. are they all coming up as pick and black checkers?

It seems none of the textures loaded in for me. Am I missing content? What's the issue here?