Sign Out link on Get Satisfaction site doesn't do anything when using FastPass

Not sure if I already reported this, but I managed to get the SSO to work and everything works super awesome, except one thing. When I log out on our own site I clear out all the user's cookies and log out of get satisfaction using a hidden iframe. This works perfectly fine, the user is logged out of both sites. But when I log out of get satisfaction it doesn't do anything. The user is logged out of neither sites. Preferably I'd just like the Sign out link on Get Satisfaction to point to the logout link on our company's site (since this would do the job). Or is there something I'm not getting? Thanks.