On the main page is a listing of forums which include one called "New Mystery Shoppers." The first dozen or so threads cover the ins and outs of getting started. There is advice on everything from bookkeeping to searching for assignments.
Equal rights for others does not mean fewer rights for you. It's not pie.
"I prefer someone who burns the flag and then wraps themselves up in the Constitution over someone who burns the Constitution and then wraps themselves up in the flag." -Molly Ivins
Never try to teach a pig to sing. It's a waste of your time and it really annoys the pig.