FF doesn't have any tickers that mark when you will be testing. If you use another ticker you'll want to create a link to your chart so it can still be easily found and stalked. Most of the tickers I've seen come from
www.lilypie.com I think. If you search TTC tickers you'll find a lot of possibilities. If I remember right, though, the ones from Ticker Factory don't work here. If you see somebody with that sort of ticker in their signature you should be able to click on it and make your own.
As far as your O date goes... I would have to guess CD 22, but since you started temping so late it's really hard to say. One of the other ladies may be able to help you more. Good luck!