Nextar X3-03

Sounds like the tech support rep you talked to didn't even know his own device since the device uses Tele Atlas maps, not NAVTEQ. I'd call back asking to speak with a service manager who is more knowledgeable about returns/exchanges. As far as drivers go, those can be installed from the CD that came with the device

Solution #1 is incorrect. Just bought on of these units at K-Mart the other day. The X3-03 uses NAVTEQ maps, it's even mentioned in the owners manual. Plus there is no CD software that comes with the unit. Plugging the unit into any PC just makes the PC make connect and disconnect alert sounds repeatedly until the unit is unplugged from the USB port. It never even asks where the driver files are. 
I to contacted Nextar through email and asked about updates to the unit and maps. This was their response:
========================== Dear Valued Nextar Customer,
                                
We are sorry, but there are no updates or upgrades for this product at this moment.  We are currently working on updates but do not have a scheduled release date.  When available, the update/upgrades will be posted on our website (listed below). For now, please do not use any upgrades other than Nextar upgrades, or the product will malfunction and your warranty will be voided.
               
For additional questions please check out our website’s support page:
                                                                 
http://www. nextar. com         
                                                        
                                   
Thank You & Merry Christmas               
 
Nextar Customer Service:  1-888-849-0846
=================================

sorry to open up an old thread.
but it looks like you need to have Microsoft Active Sync to open up the SD card on the x3-03.

download for free from microsoft.com
and as far as the updates, register with nextar or buy the updates from navteq.