When developing a website it’s still imperative that you test in multiple browsers. Unfortunately, Microsoft have made this difficult as it’s impossible to install multiple versions of Internet Explorer on your system using downloads from their website.
However, with the usage of Internet Explorer 6 still highby end users it’s still a browser that we need to test for.
Thankfully, there’s a download available which enables you to install Internet Explorer from versions 3.0 right up to 6.0.
These versions aren’t perfect and may occasionally crash but for testing the look and feel, there’s no better solution that I’m aware of.

Thanks for the link to the multiple IE thing. I wasn’t aware of that.