It looks like Windows Home Server with Power Pack 1 integrated will soon be on MSDN as was announced at PDC2008, and also on TechNet as well and both within the next few weeks.
Our friend Silver at the website UneIT discovered the information on special beta pages used at MSDN and TechNet which are designed to hold software before it is placed on the subscriber secure downloads pages.
The beta pages utilize the old subscriber downloads interface and is used for beta software before it is rolled out, which usually takes a couple of weeks, making the pages more like a forecast for new software coming to MSDN/TechNet. Although a little birdie tells me that it could take until Mid January for the software to appear.
NOTE: Sorry we cant publish the links as they are used as internal test pages within Microsoft and are not appropriate for public presentation.

