Here is the best thread I've found to get into a PFS game. You can go there and simply put your name on a list. They will notify you when a DM starts a new game.
Low Level PFS
I'm happy to try and help you out also, if you have any specific questions, as I was in your same position about a yr ago. Just send a private message to me.
(click the name above the portrait. on the page that comes up, there will be a link next to the portrait that says, "send private message".)