Hmm...Im pretty sure they are out of stock, fyi...this is somewhat irksome.
Anyway, if they DO have some extra boards, they are rev3's.
rev5's are coming in very very soon. rev1's were a very limited run and not really available anywhere. You might try ebay if youre in a huge hurry. They arnt made by us, and the analog performance sucks, but there are a couple clones out there. Else, hang out about a week and we may have something for you.
Feel free to check with the other distributors here:
http://leaflabs.com/distributors/
and DFRobot should be on that list too!