That's rather like asking - "I've built myself a model ferrari from a toy kit - how do I turn it into a real ferrari and enter it into Le Mans ?"

Answer : if I was to say this isn't easy that would be an understatement. If you have to ask, you can't do it.

Personally I wouldn't bother. Just get yourself a copy of XP professional (which has IIS built in which supports asp.net, AJAX etc).

Or download cassini.

Darwen.