As some of you may remember, I have posted something about a backend for the MP750 a while ago. The old link is dead but the project is still alive and is now hosted on http://developer.berlios.de/ with the unix name cmp750. (as it was refuse by sf maybe because of my two dead projects there ;-)) A small presentation and some files can be found at http://cmp750.berlios.de/ .
best regards, chris