I was trying to install WSS 3.0 on Window Server 2008 and ran into an interesting problem: It wouldn't install unless I installed WSS 3.0 SP1! Well, I thought to myself, "I'd be happy to install WSS 3.0 SP1, IF I COULD GET WSS 3.0 ITSELF INSTALLED FIRST!!!".
As you may be able to tell from the tone of my posting, I was a bit "Frustrated!"

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Thankfully I found this entry on Brian Harry's blog that gives you the "work around" to the issue. I am assuming/hoping that we have this worked out by the time Windows Server 2008 releases. 
Here's the link to the resolution: Click here
~ Robert Shelton