If they are the same ones we tried, they are a giant pain. Lots of screwing around to get everything downloaded and set up right for multiple version of IE. Then they expire every few months, requiring regular doses of rigmarole.

And when you finally have them set up, you know what prize you win? You get to debug some crazy-making IE issue. As far as I'm concerned, free isn't enough: they should come with masseuses and bottles of good scotch in compensation.

here: http://www.microsoft.com/download/en/details.aspx?id=11575