My site works fine in Mac browsers but I need to test it in IE/Windows. I have IE6 on my work PC but would like to install IE7 alongside it and possibly IE5/5.5 too for testing. I've come across this site with an "installer" for multiple (old) versions of IE - haven't looked into it in a lot of detail yet but I think the idea is you upgrade to IE7 then run this app to install the older versions. Does anyone have experience of using this? Does it work or does it cause problems/install other crap? I don't want to screw up my work PC setup! Thanks.