(This is for those that have created a new account)
Copy the the url of this thread. Log out. Paste the url back in your browser and go to it again if you are not already here. Then try logging in with your old name and choose "Remember Me". You should be able to log in and remain in the thread. If not, paste the url again. Once logged in, go into your user cp/Edit Options and change the forum skin to 'Use Forum Default' .... that did it for me
If you haven't created a new account, log in while viewing a thread and go to your user cp from there