Apparently the animation feature that runs the jetway is a Model Shader 2.0 or above code.
That can't be correct as I a FX5500 ower have had the jetway's working, i've found out that its part of the advanced animation's and with my copy things like wing flexes don't work (before any smart people say "turn on advanced animations" i have) so it might be a problem during install... or the config file for the advanced animations.
Kind Regards
Benji