Peter,
If you pick say 30sec, it actually exposes for 35sec. It is stationary for 5 sec to get a bright spot from the star, then it moves dec one way for 15sec and then back for 15sec so in the image you should see a line or a V with a bright dot at the start point. There should be a balance between dec rate and exposure time which you'd need to fiddle with to get it right for your FOV. It's probably easier to look at the dec numbers on the ascom control pad for your scope to see if it's moving dec.
Of course I have a house due south of me so ..... I can't test it
Al,
That CLSID number belongs to maxim.CCDCamera. Try starting maxim as administrator. So right click on maxim_dl.exe and run as administrator. If you've never done this before, maxim hasn't registered itself correctly. For win7 anyway. So long as the ascom telescope responds to the moveaxis command it should work on any ascom scope. I think they will all implement moveaxis command, that's like the command onscreen direction buttons talk to.