1. Pocket PC maps will work. you can even use the Pocket PC map cutter.
2. FD would just be another GPS application, there are many. Some choose MM & FD. I personnaly use MM & Delorme Topo. To run 2 application, you will need to split the Com signal/data.
3. not sure, check that you have the purchased DLL / proper DLL and any current fixes/ releases.