Thanks, I think this is a great forum, too.
"With the SDK from TomTom i want to get the coordinates and send them to a server at a company which put the data in a database."
I'm not familiar with Tom-Tom. Be careful with the fleet tracking restrictions in MapPoint 2004 (maybe use MapPoint 2002

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How are you going to send them? via cellular or radio link?
Regarding these items: "Is it possible to make a vb.net application with MapPoint, so i can see "realtime" (i know there must be a delay) where all the people are, what new target is, where they drove already (tracing ?) so i can exactly see where they have driven last weak or something. And is it possible keep track of the Miles they drove ? And can i see multiple cars on screen ?"
It's all certainly possible with some database/data management and custom programming with MapPoint.
BTW, there are lots of pre-built solutions with MapPoint, this company used to be a sponsor:
www.Locarta.com ... Fleetboss also comes to mind.
You might give them a call and see what they recommend, might save your company some time and effort. (tell them I sent you

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Eric