I will give you a hint on watching the posts you like Pam. I noticed what you said on the self-image challenge.
When you are in a thread...look at the top of it and it says 'thread tools' click on it and go to "subscribe to this thread". It will then ask you if you wish to subscribe, click yes.
When you go to your user cp at the top left hand corner, all the threads you subscribe to come up. If they are dark blue that means someone posted on it.
This is the only way how I can keep track of the ones I post to regularly or else I would be totally lost!
Good luck! If you need clarification, just ask.