@LumenAngel Please also upload the minidump. You should find these in your Beyond the Sword directory:
I played 12 turns or so already on your save without problems.
/edit
Autoplayed 50 turns or so without a crash on the SVN branch, also manually clicked through a few. Only issue was the Python exception message that came up, but the game didn't crash from it. So I will put in a fix for that, but I need the crashdump to diagnose the problem you are having.
On an unrelated note, how did you end up with 2000 turns of golden age?