Yahoo Gateway not logging in

I have been using Openfire for a few months now with iChat and have really liked it. The only problem is I can’t seem to get the Yahoo Gateway to work. I’ve registered it, but whenever I check my settings under last login it says and has always said never. I can’t figure out what the problem is, I am able to login and use Yahoo Messenger and login to my Yahoo account. Openfire just doesn’t login to my Yahoo. Any input?