Look up above this post, where it says WANT_MY_DREAM_HOME > Logout - My Profile - Dashboard - Help.
Click My Profile.
It should open up to Personal Profile. Scroll down the page to where it says "Signature."
Type what you want to display in that box.
Slide down some more and click "Save changes."
Go back to the forums and look at one of your posts. (this one, for instance) If you like how your siggy looks, you're set. Otherwise, go back and play with it.
I'm in Firefox, and it takes some knowledge of html to come up with special colors, fonts and so forth. If you're in IE, I think it's a bit simpler.
good luck!
* Credit is a wonderful servant, but a terrible master. * Who's the boss --you or your credit?
FICO's: EQ 781 - TU 793 - EX 779 (from PSECU) - Done credit hunting; having fun with credit gardening. - EQ 590 on 5/14/2007