(sorry for the bump)

I've just been asked to post this in here:

If your using the Linux deb repo version there's a high chance you'll not get any updates (textures etc) - it's a file permission issue. For whatever reason the version of toribash in the repo has a symlink for custom & data to a root controlled folder, so as a user you can't change or add files.

I ended up copying everything from the linked root directory into the hidden .toribash folder so I had user access.

Failing that you could always change your user so it's in the root group, but that's just asking for trouble.

(I'll also add that this isn't the case with the plain download version which updates fine)