Camman, download the Dolphin HD browser from The Market and install that. In the settings for the app change the user agent to desktop and you will be able to see the forums exactly as on your PC. It may work on other user agent settings but it definitely works on desktop.
Interestingly, the Transformer's default browser still returns the error with the user agent set to desktop.
This is only supposed to happen with the latest firmware upgrade (HC 3.2.1) which I haven't installed for that very reason