fairplan, It sounds as if you shocked it for beginners. Plants need time to acclimate to changes. A fig that has been indoors, needs to go out to a shady, protected spot before it can go into full sun and wind.
Also it isn't good to make too many changes at once. It probably should have stayed in the pot it came in for a while.
How big of a step up was the 12" pot? At this time of year figs are slowing down, and putting it into a much larger pot than the roots can dry out might cause problems.
The organic potting soil also might be too heavy and water retentive. It probably could use something to "lighten" it up and make it drain faster - perlite for example.
Hope this helps a little. Good luck.

wow. sounds like i really messed up. thanks for the advice. do you think i should re-pot it in a lighter soil at this point or should i leave the poor thing alone for a while?

If it were mine, I'd put it in a container it could dry out quickly - not much bigger than the one it came in. Next spring it will be rarin' to grow, and you can put it in a bigger container then.