Our gps track is downloadable in .gpx fomat from here
http://www.geoape.com/tracklogs/gruu...reis-2011-3148
Military Highway is the ONLY road from border to Tbilisi but it's not dangerous at all, only road conditions may be poor occasionally, but with according speed you should not have any problems. We saw even one bike travelling 2-up there. And there were massive roadworks going on at this time so it's probably much better already. If you have concerned about road surface smoothness, you should not visit Georgia at all (or at least more remote areas), but with enduro bikes it's pure joy
