Stored Procedure Error SQL 2005

I receive the following error when trying to execute my Stored Procedure.

Error converting data type nvarchar to datetime.

The field in my Table is a datetime. I have placed the query below as well as the code that I am using to execute the query is at the very bottom.

USE [EXPORTHpixPROD]
GO
/****** Object:  StoredProcedure [dbo].[spGetMonthlyEvaluationByEventID]    Script Date: 03/24/2011 07:25:14 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:		Michael Burk
-- Create date: 03232011
-- Description:	Report that selects Evaluations by EventID and Month
-- =============================================
ALTER PROCEDURE [dbo].[spGetMonthlyEvaluationByEventID] 
	-- Add the parameters for the stored procedure here
	(@EventID AS BIGINT,
	 @FromDate as DATETIME,
	 @ToDate as DATETIME)
AS
BEGIN
	-- SET NOCOUNT ON added to prevent extra result sets from
	-- interfering with SELECT statements.
	SET NOCOUNT ON;

    -- Insert statements for procedure here
	SELECT DISTINCT    
						CME_Parsed_Survey_XML.SurveyID
					   ,CME_Parsed_Survey_Results_XML.SurveyID
					   ,CME_Parsed_Survey_XML.SurveyDate
					   ,CME_Parsed_Survey_XML.EventID
					   ,CME_Parsed_Survey_XML.LicenseNumber
					   ,CME_Parsed_Survey_Results_XML.QuestionID
					   ,CME_Parsed_Survey_Results_XML.QuestionText
					   ,CME_Parsed_Survey_Results_XML.AnswerTextID
					   ,CME_Parsed_Survey_Results_XML.AnswerText
					   ,CME_Parsed_Survey_Results_XML.AnswerText2
					   ,CME_Parsed_Registration_XML.Designation
					   ,CME_Parsed_Registration_XML.FirstName
					   ,CME_Parsed_Registration_XML.LastName
					   ,CME_Parsed_Registration_XML.Title AS Suffix
					   ,CME_Courses.Title AS Title
					   ,CME_Courses.URL					  
FROM        CME_Parsed_Survey_XML INNER JOIN
			CME_Parsed_Survey_Results_XML ON CME_Parsed_Survey_XML.SurveyID = CME_Parsed_Survey_Results_XML.SurveyID
			INNER JOIN
			CME_Parsed_Registration_XML ON CME_Parsed_Survey_XML.LicenseNumber = CME_Parsed_Registration_XML.MedicalLicenseNumber
			INNER JOIN
			CME_Courses ON CME_Parsed_Survey_XML.EventID = CME_Courses.EventID
WHERE SurveyDate between (@FromDate) and (@ToDate)
END
------------------------------------------------------------------------------------------------
Code to execute query
------------------------------------------------------------------------------------------------
USE [EXPORTHpixPROD]
GO

DECLARE	@return_value int

EXEC	@return_value = [dbo].[spGetMonthlyEvaluationByEventID]
		@EventID = 87895,
		@FromDate = N'02012011',
		@ToDate = N'02312011'

SELECT	'Return Value' = @return_value

GO

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