Can't test IE7 or IE6 on Windows 7 - Please help!

I recently upgraded to Windows 7 and can't test in IE 7 or IE 6 (the programs dont open at all).
The compatibility view in IE 8 doesnt seem to render a specific site the way it would in IE 7.

Has anyone else come accross this and found a solution??
Please help thanks!

I have a feeling that Windows 7 blocks any IE before version 8. Search google for IE7 on windows 7.

use IETester

or you can install the Developer Toolbar, Which is made by microsoft for IE8, it has the capability of switching to IE7 rendering.

Either one are good, although I suggest IETester because you can test on all versions up to IE8 with it.

^ What Don said.

you could try something like this:

XP Virtual Machine on Windows 7

I'd use VMWare Player as long as you have extra windows keys to use. Setup a virtual XP machine or two and leave IE6 on one and install IE7 on the other.

You should also note that while they're aren't many differences, there are some differences between IE7/IE8 on Vista and IE7/IE8 on XP. I'd imagine there's even differences in the Windows 7's version of IE8 so it's nice if you have the hard disk space to cover your bases and pray for IE6 at the very least to slowly die and drift into oblivion.

Also if you're willing to shell out some cash, you can pay for the full version of the VMWare player and use the snapshot feature. Then all you'd need to do is leave the installers for IE7/8 on the desktop and install them when you want to test said browser but to each his own. Hope this helps!