Old Guy,
There is nothing "illegal" about purchasing an original copy of the OEM/Systembuilder Kit of Windows Home Server V1. It has been available through a number of resail channels since RTM.
However, WHS being available as OEM-only (there is no retail version) effectively means you are your own "support". You will not get technical support from Microsoft as you would with a retail version.
- Theo.
No home server like Home Server