tom -- create an account with craigslist and you can view all the ads you have posted. they are color-coded so you know which are active, which were removed by flagging, which were removed by staff, and which have expired, etc... easy way to keep tabs on everything. from what you described, i don't know why they would have taken your ads down.
btw, dig the all-lowercase? that was just for you!
just giving you a hard time!