Prepping to do a joint deployment of MOSS and Project Server on Windows Server 2008. w00t! For future reference, here are all the relevant service pack and hotfix bits:

Sharepoint Server 2007 (MOSS):

Best thing to do is install the slipstreamed bits (a must for Windows Server 2008):

• Microsoft Office SharePoint Server 2007 Trial Version (x86, slipstreamed)
• Microsoft Office SharePoint Server 2007 Trial Version (x64, slipstreamed)

Post-SP1 Hotfixes:

• SharePoint Server 2007 and SharePoint Server 2007 for Search post-2007 Office servers Service Pack 1 hotfix package (January 31, 2008)
• Windows SharePoint Services 3.0 post-Service Pack 1 hotfix package (January 31, 2008)
• Windows SharePoint Services 3.0 hotfix package (February 21, 2008)
• SharePoint Server 2007 post-Service Pack 1 hotfix package (February 27, 2008)
• SharePoint Server 2007 hotfix package (March 17, 2008)
• SharePoint Server 2007 hotfix package (March 21, 2008)
• SharePoint Server 2007 hotfix package (March 27, 2008)

Project Server 2007:

Trial download is here:

• http://technet.microsoft.com/en-us/bb738023.aspx

Better yet, there's a download on MSDN that includes SP1. If you already have the original ISO, SP1 is here:

• Microsoft Office Project 2007 Service Pack 1 (SP1) 

Post-SP1 Hotfix:

• Project Server 2007 post-Service Pack 1 hotfix package (January 28, 2008)

Also, there's a combined SP1 offering for these Server products:

• Microsoft® Office SharePoint® Server 2007
• Microsoft® Office Project Server 2007
• Microsoft® Office Forms Server 2007
• Microsoft® Office Groove® Server 2007, 64-Bit Edition

The DL is at:

• http://www.microsoft.com/downloads/details.aspx?FamilyId=AD59175C-AD6A-4027-8C2F-DB25322F791B&displaylang=en

How-Tos:

Lastly, here are typical scenarios and procedural walk-throughs for installing MOSS & Project:

• http://technet.microsoft.com/en-us/library/cc197758(TechNet.10).aspx

Enjoy!