LOL!! If you enter "swap" in the "advanced search" box at the upper right of this screen, you will get 26 pages of possible help! If you scroll through the topics, you might see something that triggers your memory.
However...Susan, I see that you've only made 2 posts to the TQS forum, and I think that if you were involved in a swap here, you probably would have had more entries.
Also, I don't remember a swap like you described....although that doesn't mean much!
Is it possible that the swap you are looking for might have been on another web site?