if you're like me, you like to use the latest software. that includes browsers. unfortunately, the latest browsers are a really bad idea if you're into web design - specifically standards-based design. because you need to workaround features not supported in older browsers. i made a really big mistake when designing a client's website - i designed it using the latest Firefox, Opera and IE7. it was okay in those browsers. imagine my shock when i viewed it in IE6 and it was fugly. and that was after deployment.
to avoid my mistake, you want to design using IE6. unfortunately, even i don't encourage you to use IE6. so how can you get IE6 for testing your web pages? well, i originally thought of using VirtualBox to create a WinXP disc image on my system - but that's a waste of about 2GB just to test web sites. so i went googling. and i came up with Multiple IEs. at first i thought it was just snake oil, especially when i ran IE6 and went to Help -> About. however, when i tested it, i got IE6's signature crappy rendering - and it was different from IE7's, so i'm quite happy advertising it. thanks to the guys over at TredoSoft!