last friday I received the Longhorn build 5048 DVD. Came home after a very tired day. But started installing it on a Virtual PC. Installation started smoothly and after 2 - 3 step it gave an error saying 'The selected partition is of a type not currently supported for installation. Please select a different partition' .
This was a huge dissapointment. Because I was planing for this installation from several weeks. I got my PC upgraded to 2 GIG RAM and 7200 RPM Hard disk.
After last friday, today only I got a free time to look back into the setup. My plan was to give another try to install in a Virtual PC, and if it fails install it in another harddisk (from my old machine). Anyway after searching in google I figured that this is a problem due to an error in the Setup.
Thanks to the Tip provided by Russ Nemhauser (Longhorn Build 5048 and Virtual PC) right at this moment i'm installing Longhorn Build 5048 .