[Typo3] AO Vehicle question

[Jogvan Olsen]

I just loaded 'AO Vehicle' bug I can't find any manual.
Can anyone tell me how I use the 'Vehicle filter:' ?
Where do I define which filter setting (PKW, LKW, Motorrad.) 'belong' to 
each car?

When I try to user this plugin, I only get this message in FE:
There are no results that match your query.
Sorry, no items were found.

Thjanks in advance
Jogvan Olsen