thanks for your help, guys. I found that there were some spacing issues that was pushing the sidebar out and since the overflow was set at hidden, I could not see it.
also, thanks alchymyth for the tip on the unique sidebar, I was able to get it to work. thanks!
I don’t know if you still have a problem with this but I had the same problem and found a solution. If you’re using the same files as I am, one of the files towards the beginning had some ‘const’ declarations. IE does not recognize this type. Change them to ‘var’ declarations and hopefully it should work. The ‘const’ declaration seems to be a FF specific declaration:
https://developer.mozilla.org/En/Core_JavaScript_1.5_Reference/Statements/Const