Personly frames is very sucks, and normaly have problems with it (so I allways avoid them, when I creating pages). The most comen problem is the back button is set out of function, and just reload the page. A method I so very hate, when they does.
The sidebar seen to need a rewarp with a more modne design, since it look a years old page. It need a rewarp with a new php based design, so you can remove frames completly...
This is because arcadecontrls.com basely have 3 very defficent page designs, but should been hold to once.
It may been better to use a dynamic javascript based top or sidebar instead, and include it on both wiki and forum? it only a idea, and can be a bad idea. It would been more integreated. These dosent take much screenplace, and can use the same links as well.