Beta 2 of V3.0.7 is out. I released V3.0.6 last week, but found a couple of bugs that affected new users and then importing of .FIT & .STE files. These are now fixed.
Download the latest beta from: http://www.ismarttrain.com/Beta/
Barring any other major bugs, V3.0.7 will be out as a final release after the weekend.