Thank you, Zesty. That was exactly the kind of explanation I needed.
Thanks to the rest of you also, for taking the time.
Strider12 - fair point. I just did the Supporter thing. Now I feel better about myself.
I've seen ads with 'bump' added as a post, and it appears that some ads do actually move back to the top without being re-posted. Is that right, or do you have to set your own filters to most recent in order for bumped ads to be at the top? I'm hoping to not have to re-typed everything on an...