Originally Posted by pman555
Nah, I don't think they are the same thing.
I think I'm just going to go the more sure route and make an ISO out of the disk I have.
Yeah, they aren't the same thing. Enterprise is only volume licensed and is basically Ultimate with different licensing. The only place you'll find the isos is on the volume licensing site, technet or msdn. I think you can use the trial version and activate it if you have a MAK code or KMS server. http://technet.microsoft.com/en-us/evalcenter/cc442495.aspx
I'm assuming you have a MAK to activate it, it's usually good for hundreds of activations, depends on your licensing agreement with MS.
Edit: actually looks like the trial is only good for 90 days and they embedded the key, I guess you could try editing the key before install or try changing it after the fact, probably easier to just make an ISO from your disk though.