Trent, I don't think so. I usually go by category. I start in the photo gallery and go back to the posts for the dates I'm covering. Then I go to general chit chat and look for photos there....then maybe misc. discussions...my WIRs are generally photo-themed, while others really go all out with certain discussions, birthdays, etc. I try to put all new members up, but sometimes I just don't have the time. If you try to spend a few minutes on the new stuff each day, it's much easier. This is your first time, and I hope Brent won't mind my saying this, but just get your feet wet this time. It's really hard to go back and start from the very beginning, ESPECIALLY if you've never done it before. The WIR is nice and people enjoy it, but we'll survive if you miss stuff.
It really is a fun thing to do once you get into your own way of doing it. It's amazing how much stuff I miss that I catch up on during my weeks. Thanks for giving it a shot, and if you need help or have questions, feel free to pm me or any of the authors.