jmm7574 on "Revert to old version of plugin (bbPress 2.0.3)"

I'm using a theme where the theme author hasn't updated it for the changes to the most recent version of bbPress. So since I updated to bbPress 2.1 (and 2.1.1), the forums on my site won't work.

So ... is there any way to revert back to an old version of a plugin? In this case, I know that bbPress 2.0.3 worked on my site.

Any suggestions would be much appreciated.

Thanks ... Matt