Remember it can take 24 hours up to a few days until domain names are fully propagated over the internet. Maybe you tried to soon and made changes to your DNS again while it was still propagating. This in turn would take more time.

Have installed WAMP many many times and my problems were almost always due to firewall or router issues. Making changes inbetween the DNS propagating was also one of those mistakes.

If you say while looking at my www.domain.com I get the msn search page it sounds very familiar, taking in mind you have entered the correct DNS details, it means the domain has not yet been fully propagated.

Dusty