Hyper-V server Q &

Headed to the training center with two questions!
1. How to install the virtual NIC Driver? (Unable to identify, unable to install the driver)
2. because the existing machine has only one IP address in the server room and the server itself is well configured, you want to attach different operating systems or the same operating system to the same IP address, separate the email servers, web site servers, and client demo servers in the existing system respectively?

After a question, the reply is as follows:
The virtual NIC driver does not have this problem in Windows 2008 server R2. There are two other versions, one of which is the full-function version, and the other which only includes the hyper-V function.
The second problem cannot be implemented directly. hyper-V manages multiple existing physical servers to achieve the highest cost savings and business continuity through p2v.

I was so dizzy that I had to get a Windows 7 CD. Why didn't I get a Windows Server 2008?