Maybe I'm being dense, but I don't want to mess-up my system because I'm starting from a different state than the one you expect. Can you please describe what this installer expects to be on the machine before installation? Can you please describe what will be there after installation?

To me, it seems the preferred state would be to have a machine that already has IE7 installed via the Microsoft update. It is their most recent browser, it should be the one really installed on your system. So my system now has IE7 and FireFox 2. Will running this installer add stand-alone versions of IE6, IE5.5, IE5, IE4, and IE3 without changing the IE7 already on my machine?

Thanks for the clarification, should you choose to give it.