Geographic location via sms

[Carty]

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/apippc/html/ppc_sms_provider_specific_message_class.asp

This link above is from msdn, which gives an idea how to get the area information the cell associated with..
Can someone pls help me how to use this in VB .net CF pls..

Waiting for reply, Tanx in advance

Regard
Carty..