Hello Tavros, when you are logged in as the SiteAdmin, do you see the Map-folders you have created using GpsTools Studio, as options under Custom Maps when you create or edit a Custom Map? When you click on the "Import/Refresh map data"-button, do you see the maps in the list?
Any Custom Maps you want to use must always be located in the folder you specify when you run the Installation Wizard, its default name will be "GpsGateServerMaps", unless you gave it another name when running the Wizard.
In the VehicleTracker GUI you select the Custom Map you have just created in the Custom Maps-drop down menu.
/ With regards