I used to do it, I may have been using a different browser though. If you download the Firefox, Opera or Dolphin browsers they should all have options to change the "User Agent". Change it to IE6 to tell your phone to act like Internet Explorer when visiting websites, that should do the trick. You can change the user agent in the stock browser but it seems you can't turn it to IE6.
I used the (modified) stock browser in CM7 which had an IE option I believe. I do know I had it working just fine on my phone. (Nexus S).
I'm back on stock os/browser now and it looks like its not as easy, doh. If you download the Dolphin HD browser then go into Settings->Dolphin Settings->User Agent->Custom then enter the following as your user agent: "Mozilla/5.0 (Windows; U; MSIE 7.0; Windows NT 6.0; en-US)" it appears to work. You can change your user agent in the stock browser but you can only select from a few options, not enter your own.