Yeah, Toolbag auto updates, the only limitation there is the app needs to have focus for it to update, so you'll have to click on the TB2 window to see the changes.
Yes, the site update broke the integration. We'll provide updates here: http://polycount.com/discussion/160887/sketchfab-integration-on-polycount-is-broken#latest ^bart
Updated the overall shape, the geo is much cleaner now. Block in some cards where the hair will be covering. Next update will include the full torso and legs!