Yep, just the one. Not quite one sock syndrome though. Thought I'd see if I could knit socks by following the online tutorial I came across http://www.royea.net/sockdemo1.html. This made the whole process understandable and the picture is the end result. Just a little loose, but a sock none-the-less :)
A tip I read on the first sock syndrome, knit both socks to the heel flap then do one at a time, if you have enough needles!