Windows 7 House party OEM? Retail?

It is the retail version. You can confirm it yourself by browsing the disk for the ei.cfg file and opening it in Notepad.

the signature edition disk is a full retail version, it will not be tied to your hardware if you choose to move your installation from one pc to another(note it's not legal to have it installed on multiple pc's at one time.) you will also not need a previous version of windows to install from the signature edition disk as it is not an upgrade disk.

It is the full retail RTM version, which means like any retail copy it belongs to the owner and not the machine (OEM).

You can migrate it to another machine for any reason. The only rule is that you cannot have it on more than one machine at the same time.

I had a retail XP which I used on four successive machines. The tech support alone was worth the money as they taught me clean reinstalls, virus hunting, optimization, and much more, responding to my eagerness to learn by spending hours helping me. I can only hope MS is still as generous. I feel like I got a college education at the top university!