BizTalk 2009 COnsuming sharepoint lists webservice - UpdateListItems

Hi ,

I am trying to conusme the Sharepoint lists webservice (UpdateListItems) method in order to update a record in a sharepoint list.

I have imported the shemas and ports from the web service and created an orchestration that sends the update message to Sharepoint.  the message being sent to Sharepoint is

<ns0:UpdateListItems xmlns:ns0="http://schemas.microsoft.com/sharepoint/soap/" xmlns:imp="http://microsoft.com/wsdl/types/"> 
<ns0:listName>{5DBC7621-F371-432D-A890-C5803D1A90AA}</ns0:listName>
<ns0:updates><Batch OnError="Continue" ListVersion="1" ViewName="">
<Method ID="1" Cmd="Update">
<Field Name="ID">1</Field>
<Field Name="Title">I1</Field>
<Field Name="Item1">I2</Field>
<Field Name="Item2">I3</Field>
<Field Name="Item3">I4</Field>
</Method>
</Batch>
</ns0:updates>
</ns0:UpdateListItems>

The sharepoint list contains the fields as mentioned in the message.

In response to this message, the Sharepoint web service gives me this fault message

<soap:Fault xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<faultcode>soap:Server</faultcode>
<faultstring>Exception of type 'Microsoft.SharePoint.SoapServer.SoapServerException' was thrown.</faultstring>
<detail>
<errorstring xmlns="http://schemas.microsoft.com/sharepoint/soap/">Exception from HRESULT: 0x80131904</errorstring>
<errorcode xmlns="http://schemas.microsoft.com/sharepoint/soap/">0x80131904</errorcode>
</detail>
</soap:Fault>

All I can figure out from here is that there is an inner error in Sharepoint server.

Also if I cosume the same web service method from a C# console application, (using UpdateListItems) then the sharepoint list gets updated. The code for which is :

namespace CallSHPWebSvcConsole
{
    class Program
    {
        static void Main(string[] args)
        {
            helium_shpList.Lists shpList = new helium_shpList.Lists();

            shpList.Credentials = System.Net.CredentialCache.DefaultCredentials;
            shpList.Url = "http://helium:3535/_vti_bin/lists.asmx";

            System.Xml.XmlNode ndListView = shpList.GetListAndView("Manish", "");
            string strListID = ndListView.ChildNodes[0].Attributes["Name"].Value;
            string strViewID = ndListView.ChildNodes[1].Attributes["Name"].Value;

            System.Xml.XmlDocument doc = new System.Xml.XmlDocument();
            System.Xml.XmlElement batchElement = doc.CreateElement("Batch");
            batchElement.SetAttribute("OnError", "Continue");
            batchElement.SetAttribute("ListVersion", "1");
            batchElement.SetAttribute("ViewName", "");

            batchElement.InnerXml = "<Method ID='1' Cmd='Update'>" +
                                   "<Field Name='ID'>1</Field>" +
                                   "<Field Name='Title'>MPHJ</Field>" +
                                   "<Field Name='Item1'>IUYU</Field>" +
                                   "<Field Name='Item2'>098i</Field>" +
                                   "<Field Name='Item3'>loi89</Field></Method>";
            try
            {
                shpList.UpdateListItems(strListID, batchElement);
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
                Console.ReadLine();
            }
            Console.ReadLine();

        }
    }
}

Can anyone please throw some light on this