[pdknsk]

It's VHD (although relatively easy to make work with VirtualBox), but more importantly exe files. I don't know it cabextract or unrar can handle this. In either case, it needlessly unfriendly to non-Windows users.

[xdissent]

The IE6 image is a cab and the rest are rars. I tried to make it more friendly: http://xdissent.github.com/ievms/

[raverbashing]

Then great

I won't use them (even though I remember something about cabextract being able to extract .exe files)

I won't spend a minute testing on IE except if needed.