Hi
I did this a few years ago.
I remeber that the internal markers M9036 etc had to be replaced to suit the Q's and that I had to recheck the timer timebase settings.
I also removed the analog input scaling routines and used the tool for the Q analog card itself
Go to www.meau.ca They have a section on their website that helps a lot. I have done many A to Q conversions including Network, analog, serial, and counting cards; have had good luck doing them all.