Been checking how to get from georgie to russia as well, only way is with a ferry or over azerbeidzjanm a direct transfer over land seems impossible ... You plan on going overland if yes where is your flight going?
The border between Georgia and Russia is currently open to all nationalities. I have confirmed this with Georgians living in Tbilisi (through the Couch Surfing website), although I have yet to here of any Canadians / Americans that have crossed. Here are some random forum posts talking about the opening:
http://www.couchsurfing.org/group_read. ... st=9861831
http://soviettruck.com/forums/topic/rus ... sing-open/
http://www.lonelyplanet.com/thorntree/t ... 3#19769123
http://www.lonelyplanet.com/thorntree/t ... ID=2122018
As of right now it sounds like you can cross legally on a daily basis, but there is not great bus service. The Georgian Military Highway is supposed to be beautiful.
We are going to climb Ararat and Elbrus this July, but won't have time to do the overland through Georgia (which sucks). Flying will work out better with acclimatization, as flying directly from Van, Turkey to MinVody, Russia (you can make all the flights in a day for ~$400) will allow you to sleep high.