How do convert a datatype from nvarchar to smalldatetime in a Data Flow

Hello! I am almost done with my SSIS Package. However I am stumbling on the following:

I am important from an Excel spreadsheet time dates as nvarchar(10) (I am stuck with that datatype for now) and it is being stored in my staging table. I then must convert it to a smalldatatime datatype in a Table that the application can read using a stored Proc in an OLD DB Command Component. The following is my stored proc. Please focus on the SELECT CONVERT(SMALLDATETIME, @StatDateTaxDue) statement. This is where I am trying to convert the Stored Proc input nvarchar(10) param to a smalldatetime datatype. I have been working on this since Friday. Any ideas? Thanks!!! Mike

USE [BAPropertyTax]
GO
USE [BAPropertyTax]
GO
/****** Object:  StoredProcedure [dbo].[UpdateStagingTable]    Script Date: 08/17/2012 17:27:29 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [dbo].[UpdateStagingTable]
    @CASEID nvarchar(255),
    @County nvarchar(255),
    @Address nvarchar(255),
    @City nvarchar(255),
    @State nvarchar(255),
    @Zip nvarchar(255),
    @AcquisitionDate nvarchar(255),
    @Step nvarchar(255),
    @StatDateTaxDue nvarchar(255)
AS
BEGIN
    SET NOCOUNT ON;

    update dbo.Property

    set PCounty=@County,
       PAddress = @Address,
       PCity = @City,
       PState = @State,
       PZip = @Zip,
       PAcquisitionDate = @AcquisitionDate,
       PCurrentStep = @Step,
       PStepDate = @StatDateTaxDue
      
    where PCaseId=@CASEID
   
    SELECT CONVERT(SMALLDATETIME, @StatDateTaxDue)
    
    UPDATE dbo.[LineItemInfo]
 SET        LIStateDate = cp.[Tax Service2]
 FROM     dbo.[Destination - YARDI_REPORTS$] AS cp INNER JOIN
                dbo.[LineItemInfo] AS mp ON mp.LIPropCaseID = cp.[CaseID]
                WHERE mp.LIPropCaseId = @CASEID
     
      UPDATE dbo.LineItemInfo
      SET LIStatus = @Step,
      LIStateDate = @StatDateTaxDue
     
      WHERE LIPropCaseId = @CASEID
  
END

Mike Kiser