> But still not maps were generated !! 
I don't know enough about the OSM stuff to give you much advice there,
but I do suggest you install QGIS (www.qgis.org) and connect to the
PostGIS database that way. That will let you know if the problem is
with getting it into the PG data base or with rendering the database
in GpsDrive.
good luck,
Hamish