I was going to fly EGLL to UGTB, I generated the route in Route Finder, but was not able to generate the flight plan in either FS Build, FS Nav, FS Commander or the FS 2004 Flight Planner as the ICAO UGTB does not appear in any of them. The closest Airport is UGGG Tbilisi, I have looked in Google and both ICAO's appear, and when you look at the co-ordinates for the 2 airports they are 8 seconds apart, are these the same airport where one has been re- named??