If you can't save Vehicle Type and Conditions:
Open admin.vehicletype.php
Search for this line (Vehicle Type):
$vehicle_type_list = mosHTML :: selectList($vehicletype, 'drive_type', 'class="inputbox" size="1"', 'value', 'text', $vehicle->vtype);
and change it to this:
$vehicle_type_list = mosHTML :: selectList($vehicletype, 'vtype', 'class="inputbox" size="1"', 'value', 'text', $vehicle->vtype);
---
Search for this line (Conditions):
$condition_status_list = mosHTML :: selectList($condition, 'condition', 'class="inputbox" size="1"', 'value', 'text', $vehicle->vcondition);
and change it to this:
$condition_status_list = mosHTML :: selectList($condition, 'vcondition', 'class="inputbox" size="1"', 'value', 'text', $vehicle->vcondition);
---
Thats all