Problems Inserting Datetime Object Into Sql Server 2005

hey everyone,

Im trying run a stored procedure, but I am getting the following message when trying to execute it.

Implicit conversion from data type datetime to int is not allowed. Use the CONVERT function to run this query.

which seems strange, as there is no integer going to a datetime field. Also, it does not return the value that is incorrect, nor the parameter that is failing. If there is anyway to view this in VS 2005 Team suite, please let me know.

It should also be noted that when I execute this sproc from within sql management studio, it executes fine.

This is the stored procedure im trying to execute...

CREATE PROCEDURE [dbo].[sp_UpdateRequest]

@request_id INT,
@request_client_id INT,
@request_description VARCHAR(150), @request_date DATETIME,
@request_edit_date DATETIME, @request_status VARCHAR(25), @request_approve_date DATETIME,
@request_activity_code VARCHAR(7), @request_department_code VARCHAR(3), @request_participants INT,
@request_activity_date DATETIME, @request_activity_due_date DATETIME,
@request_company_id INT, @request_company_code INT,
@request_notes VARCHAR(2000)

AS
BEGIN

UPDATE invoice_requests

SET request_client_id = @request_client_id,request_description = @request_description,
request_date = @request_date, request_edit_date = @request_edit_date,
request_status = @request_status, request_approve_date = @request_approve_date,
request_activity_code = @request_activity_code,
request_department_code = @request_department_code,
request_participants = @request_participants,
request_activity_date = @request_activity_date,
request_activity_due_date = @request_activity_due_date,
request_company_code = @request_company_code, request_company_id = @request_company_id,
request_notes = @request_notes

WHERE request_id = @request_id

END
GO

in my .net app, all the datetime objects are valid dates, so I could not see why this would be generating the error that it is, so I ran the SQL Profiler, and this was the output. Again, i cannot see where im going wrong...

please note, I have seperated the output from the single slab of text, making sure I didnt remove anything...

exec sp_executesql
N'EXECUTE sp_UpdateRequest
@request_id,
@request_client_id,
@request_description,
@request_date,
@request_edit_date,
@request_status,
@request_approve_date,
@request_activity_code,
@request_participants,
@request_activity_date,
@request_activity_due_date,
@request_company_id,
@request_company_code,
@request_notes',

N'@request_id int,
@request_client_id int,
@request_description varchar(8000),
@request_date datetime,
@request_edit_date datetime,
@request_status varchar(5),
@request_approve_date datetime,
@request_activity_code varchar(8000),
@request_department_code varchar(8000),
@request_participants int,
@request_activity_date datetime,
@request_activity_due_date datetime,
@request_company_id int,
@request_company_code int,
@request_notes varchar(8000)',

@request_id=5,
@request_client_id=1,
@request_description='',
@request_date=''2007-11-22 16:34:32:997'',
@request_edit_date=''2007-11-22 16:34:32:997'',
@request_status='Draft',
@request_approve_date=''1970-01-01 00:00:00:000'',
@request_activity_code='',
@request_department_code='',
@request_participants=0,
@request_activity_date=''2007-11-29 00:00:00:000'',
@request_activity_due_date=''2007-11-23 00:00:00:000'',
@request_company_id=0,
@request_company_code=1,
@request_notes=''

any help on this would be greatly appreciated.
Cheers