Although I am a complete fan on texas hold'em online, I've been familiar with 7 card stud off-line for many years.
If you know how to play hold'em, 7 card should be easy. The only thing you need to remember is with stud, there are no community cards involved. You make the best hand you can out of 5 of the 7 cards in your hand.
When I started, the most confusing thing was which hand beats which. I found that different people try to have different opinions. For example, I believed that nothing could beat a straight flush except a royal flush - well one character tried to get me to believe that 4 of a kind could beat a straight flush.
I'm saying this to say, if you're going to be playing 7 stud, make sure you understand the hand rankings - folks might try to trick you. Hope this helps.