The biggest thing I can say about learning guitar - dont ever give up. Something you cant play one day, will come another. Also, if you have the funds, get together with an tutor - this makes it much much easier. Trying to learn something like guitar, with no physical support, is a pain in the neck. It can be done, but your progress will be much better with an instructor.
I love playing guitar, I played in a local band, had to quit due to lack of time - now I sometimes get to play with them on particular songs, which is always fun.
Keep at it brother, it'll come.
Wurz