I'm not certain why SSL 2.0 isn't disabled on Windows Server 2008 by default, but here is the KB article to remember to do that on your system.
http://support.microsoft.com/kb/187498
How to test if you accept SSL 2.0 using IE is go to Internet options > Advanced > Under Security. Toggle the various levels. Uncheck everything and leave 2.0 checked, which I think in IE8 is turned off by default. It took me a couple tries to understand the concept after disabling SSL 2.0 on my IIS 7 server. This is one necessary item for PCI compliance among many others. :)