Silverlight Stored Procedures

I am having implementing a stored procedure and returning a complex type. Here is the stored proc 
ALTER PROCEDURE [dbo].[PromoCatalogItem_TotalQuantity] 

@promoCatalog_ID decimal(18,0),
@member_ID decimal(18,0)
AS
BEGIN
    SET NOCOUNT ON;
    SELECT PromoCatalog_Item_ID,
           SUM(T2.Promo.value('(DATACOUNT)[1]', 'decimal(18,6)')) AS TotalOnQuantity ,
           COUNT(*) as Times
    FROM Member_Promocatalog_Data
    CROSS APPLY ReportData1.nodes('/DATA/ONPROMO') T2(Promo)
    WHERE Member_PromoCatalog_ID = @promoCatalog_ID
    AND ReceiverID = @member_ID
    GROUP BY PromoCatalog_Item_ID
END

I wish to return a complex type which is the rows from the SELECT statement. I have created a FunctionImport defined for this stored proc but I am unable to return the results. I have verified that the correct paramters are passed to the SP and I have validated that the SP returns a result with this parameters using SQL Enterprise Manager. Here is the code I am using in Silverlight

        public INotifyCompleted load_PromoCatalogItemOrderLevels_Coroutine( Decimal promoCatalogID, Decimal memberID) 
        {
            var q = mgrPromoCatalog.PromoCatalogItem_TotalQuantityQuery(memberID, promoCatalogID);
            return mgrPromoCatalog.ExecuteQueryAsync(q);
        } 
and I call this in a Coroutine using StartParallel. Here is the Completed handler ( I Have deleted other code to minimize the amount of text )

       public void load_MemberPromoCatalogEntities(Member_PromoCatalog memberPromoCatalog, Decimal memberID)
        {
            var coop = Coroutine.StartParallel(() => load_MemberPromoCatalogEntitiesCoroutine(memberPromoCatalog, memberID));
            coop.Completed += (sender, args) =>
            {
                if (args.CompletedSuccessfully)
                {
                    //get the results from our stored procedure call
                    var results = args.Notifications[5] 
                 }
                else
                {
                }
            };
        }

I see no errors in the results but I have not data returning. Any help would be appreciated