Can you make an airside transfer between terminals in orlando?

I'm arriving on continental and connecting to virgin atlantic and I see they're on opposite sides of the airport..

Enjoy security

One trick to get to VS' airside is that its security line is accessible on both ends of the terminal building (A & B side)...it's one big building about 100 yards across. The B side lines tend to be very uncrowded while the A side lines (just yards apart and separated by the ClearSkies line) tend to be 25 yards long at all times. This is because Southwest, JetBlue, and AirTran's counters are on that side and no one important has their counter on the B side for the two airsides that this security line serves.

I'm sorry if that sounds real confusing. At any rate, when you get to security for the gates to Virgin Atlantic, just realize that you could walk a few feet on down and the line may be empty. Gates 60-99 (Virgin, I believe) and Gates 100-129 are served by the same set of security lines but have different trams once past security, so use whichever security line is shortest.

Not sure if this trick will work now. The TSA seem to be controlling access to the shuttle trains and are herding you into little holding areas before allowing you onto the trains. From what I saw you cannot move freely from one area to another.