I thought I´d answer myself back here, in case Intetzel1 haven´t found a solution yet...
The key was to make the program change in the list editor area, just before any midi command started to play.
I was pondering this myself for a while, ´cause I could´nt change the program value the normal way as the audiosuite disabeled that showing only the model specifications (eg. 6100(4poly), 3300(16 poly) etc..) on the normal program change field.
Luckily I did´nt get too frustrated and found the nerves to read through this forum... found the answer and it was - as i wrote- the list editor.