Windows Server 2008 on VPC (Host: Win 7)?

Is it possible to test Windows 2008 server via VPC when my host of a Windows 7 machine? I don't see anywhere where it says this i开发者_StackOverflow中文版s possible? The only VPC images (Windows 2008 R2) that I download from Microsoft state that the host machine must be Windows 2008. Is there an alternative?

---

Guess I got my answer here - http://www.windowsitpro.com/article/virtualization/q-does-windows-virtual-pc-in-windows-7-support-64-bit-guest-oss-.aspx

Virtual PC in Windows 7 does not support 64-bit guest OSs which is what Windows 2008 Server is :(