Sample code for Reporting 2005 Web Service needed

Hi.

I have an ASP.NET project in written in VB.NET 2003 using the RS 2000 Web Service to render HTML report data as a part of web page. The function uses credentials to impersonate an NT user, passes custom report parameters and uses the RenderStream to handle images.

My challenge is to convert this code to the new ReportExecution2005 service. I have spent most of the day writing code which returns the not-so-inspiring message "System.Web.Services.Protocols.SoapException: Server did not recognize the value of HTTP Header SOAPAction"

Can someone please provide some sample code which demonstrates the whole process of executing reports using the 2005 web service

Thanks a bunch,

Morten