I attempt to log in; entering my user/password, but in the top right corner it still reads "Log In." If fact, I could not log in - and of course, could not post anything. I have no trouble with the Internet Explorer though (which I am on now.)
So you enter your username/email and password > hit submit. Do you get an error message? My first guess is that it's a cookie issue with AOL; ensure you're accepting them. Second would be an AOL proxy issue.
Haven't used aol in a long time, but your issue sounds alot like the cookies in the aol browser need to be cleared out. Used to happen with a few websites, and I found once I connected in to just go through Internet Explorer for those sites.