So I used my key on the 8.1 ISO I got and it didn't work, so I then used the above key and it let me continue. What I'm really wanting to know now before I press on is if the above method works once I get it installed? I just don't want to install it to find out it doesn't work and end up having to redo it all again and revert back to what I had. Again thanks for any help guys!
If you're able to get it installed with the generic key for the proper version corresponding to the key you bought it should be fine. If it doesn't for some reason you can you should be able to use the slmgr.vbs script from an elevated command prompt:
slmgr.vbs /ipk <your key>
The first removes all keys, the second installs yours, the third activates. If it fails you may have used the wrong install key. There's a way to switch but it's a pain in the rear.
DON'T reboot after you remove the current keys with /upk or it may not boot anymore. You need to do at least the first two steps in one session.