Thanks guys. Samata, your explanation was a big help and so was dougjt's suggestion to look at a keyboard. I found a picture of a keyboard on the internet that was marked with the natural notes on the white keys and the # and b on the black keys. That helped me visualize what was going on. I thought that the half steps and their tone related to how they are portrayed on a music staff, but i guess that's not the case. Por ejemplo, E is on a line, F is in a space, G is on a line and so on.

Is their anyway to rationalize where you are at when you play a note on the guitar or is memorizing the note and the next half step up the only way? Not that it's that hard, just curious.

Also. Is there such a thing as an E# or B#?