I downloaded the new IE on to a Windows computer. Looks great. Worked well. A huge improvement.
But IE6 was gone!
IE7 replaces IE6. There is no supported way for IE6 and IE7 to install side-by-side. We know this is an issue and hope to address it in a future version of IE.
– Tony Chor, Group Program Manager, Internet Explorer
Warning. Don’t download the new version unless you are completely sure you want to upgrade. You need some time to figure out the new features and key commands.
Rick McCharles 
Hey, it happened to me too. A friend of mine came over and was noodling away on my computer. He saw that IE7 was out and installed it, wiping out my IE6 in the process. Since my favourites list remained, however, all this meant was that I couldn’t go back to IE6, and since IE7 is vastly better (unless the new version comes with surreptitious direct reporting of my every mouseclick to some government spy agency – hey, who knows?), what’s the big deal?
One defect I have noticed with IE7 is that the Back Button skips a page. For instance, I just went to nhl.com to check on yesterday’s games; from there clicked to see more info on Montreal’s game; then clicked the back button. Instead of going back to the nhl.com home page, I was taken back to the page I was on before I went nhl.com. Weird, eh? Checked it out in Firefox and it worked as expected, so the problem is with IE7. This has happened to me before. Has it happened to anybody else?
Just finished installing IE7 Beta2. As mentioned in my previous message, I was having a problem with my previous version of IE7: clicking on the back button took me right out of a multi-page website to the website I was visiting just prior to the current website instead of just going back to the most recent page WITHIN the current website. This new update seems to have fixed that.
By the way, in the installation process, I discovered that my old IE6 was still on my computer (though not listed in the Control Panel’s list of programs). This is because I couldn’t install over my previous version of IE7: I needed to remove it first and then install the latest IE7.