It's true that PFS is pretty hard to figure out, especially if you don't have a well established and consistent lodge near you.
Each region definitely has it's own style of doing things, and even playing in different regions can yield vastly different experiences. I occasionally play in a different state when I head into my jobs main office, and while the base game is still the same, it's not the same experience as when I play with my home lodge.
The best advice I can offer you is to google " pathfinder society" and figure out what they use to do signups. A lot of places use warhorn, but I've also seen BBS systems and even meetup.com.
If you have specific questions, I can try to answer them, or at least get you in touch with the VC (or one of the VAs) at my lodge and they might be able to help you out.