If you're still stuck on pointers (although sounds like you eventually got past it), Kernighan and Ritchie have a very no-nonsense, straightforward presentation of the concept.

http://books.cat-v.org/computer-science/c-programming-langua...

See chapter 5. Starts with a nice little picture.

Of course, the basic concept of a pointer is not really that tricky. It's how to use them, what you can do with them, and how to avoid accidentally shooting off your foot with them that are the tricky parts.

Anyhow, if you know any other programmers who want to understand pointers, I don't think you can go too far wrong pointing them towards Kernighan and Ritchie.