I would like to create a windows mobile application (6.5) which connect to a webservice via GPRS hosted on my server at home. The webservice was tested successfully using a wind
If the service is a standard XML or WCF service, then simply right-click on the "References" node in the project's tree and select "Add Web Reference" just like you would with a desktop project. This will create the proxy classes for you which you can then use in your application, again just like a desktop application.
MSDN even has a tutorial for these steps.
If you've tried this and are having specific problems, feel free to provide more detail and we can help you out.