I started running properly in the summer of 2008, only doing about 15 mpw though and really irregularly. Didn't train for about 2 weeks over Christmas and went in for my first 10k on January the 4th on a really hilly route. Ended up doing 53:33, which I though was pretty good considering.
My progression since then has been something like this:
April 09: 48:00
May 09: 47:00 (yes, both of the previous times were exactly on the minute)
September 09: 43:30 (time trial, not a race)
December 09: 40:30 (predicted, race on the 20th)