Ok, so I have this working. From some Google searchs I get the impression that I need a DataAdapater to
get this data back into the DB.

Can you point me in the right direction?

public void UpdateUser(string sUserXML)
{

    StringReader oReader = new System.IO.StringReader(sUserXML);
    DataSet oDataSet = new DataSet();
    oDataSet.ReadXml(oReader);

}

Thanks