Just wanted to note that I'll be posting one soon as well-- I've had CTDs at fairly consistent times in the wheel turns (3rd run-through was the charm) and the mission Capt.Jack mentioned, Slipping the Noose. I did use the new msi for the 3.4 version, though I moved the install to my other drive since it gave me no install options... boo, bad installer!
I think both missions produced crashes at or near points where primary objectives are changed/updated. The crash itself just gives me the 'freespace encountered problem yadda yadda'.
Specifically, 2 crashes in the wheel turns when the Centauri cruisers begin attacking and the objective was to stop them. Then, in the 'Spoo Ranch' mission, I've had 3 crashes when the G.O.D. sat turns on Altair Station. Once, it kept going just long enough to launch missiles, but the other two times it's been right when it turns hostile and objectives are updated.
Regardless of this, thanks for making such a great B5 TC.. I'm loving this!
*Edit-- Figures... now after I ran the mission 3 more times, it won't crash!