I've not been using Visual Studio 2010 Beta 2 so the first thing I had to do was install this:
Installing Visual Studio 2010 is really easy except for the fact that you have to reboot your machine at least 3 times - seems a bit suspect when it's almost 2010 but at least you know it's a genuine microsoft product...
http://www.microsoft.com/visualstudio/en-gb/products/2010/default.mspx
Press the button Download 2010 Beta 2 Now
Then run the downloaded executable
This will install Dot Net framework 4 and Visual Studio 2010 Beta
Visual Studio 2010 can be installed side-by-side with Visual Studio 2008
It doesn't look or behave radically differently to 2008 at first glance at least.