Very well, thanks and glad to hear you're doing well also.
Nope you shouldn't have to reinstall anything. Just open Hyper-V Manager at add the new "External" Virtual Switch and then with the 7 VM off, add it to the setting under network adapters. Should be good to go. When you have the chance to beat up on it, maybe hit me with another post and we can compare notes if you run into issues.
As an aside note Hyper-V in Windows 8 CP, is no VMware Workstation. I suspect there will be some updates sooner or later.
Device manager is sketchy, with some unknown devices that I haven't sorted out yet. No apparent support for sound devices.
Maybe a big deal on the Server side if a big shop is going to be virtualizing their Exchange and SQL machines, but for the average everyday desktop user, I'll stick with my VMware Workstation 8. I suspect even the free Player version would work as well.
Just my two cents. Still early in the game though.
Randy