Windows Xp version on your carputer mb (use an hd in this phases), then run tap.exe on it to have a full devices description.
Then you can work on your regular computer using "Component Database
Manager" and "Target Designer" from Microsoft Windows Embedded Studio
Once created the image of your target carputer you con copy on hd to
speed up FBA. After you installed all needed sw you can copy all on a cf.
There some intermediate steps you need to do...
Let me know,