Help With A Simple Update Query..

hi, i've just started using sql server 2005 and visual studio, i have made 3 stored procedures, an update, insert and delete. The update one doesn't work but the others do so i'm on the right track with them..

is there anything obvious i am missing in the following update stored procedure? All of the datatypes and names line up with the datatypes/sizes/names in the table..


Code:

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go
-- =============================================
-- Author:<Author,,Name>
-- Create date: <Create Date,,>
-- Description:<Description,,>
-- =============================================
ALTER PROCEDURE [dbo].[spUpdateAddresses]
-- Add the parameters for the stored procedure here
(@addressID int, @fname varchar(50), @lname varchar(50), @address01 varchar(50), @address02 varchar(50), @suburb varchar(50), @state varchar(50), @postcode char(10), @comments varchar(1250), @phone char(10), @fax char(10), @mobile char(10))

AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
Update addresses
set @fname=fname, @lname=lname, @address01=address01, @address02=address02, @suburb=suburb, @state=state, @postcode=postcode, @comments=comments, @phone=phone, @fax=fax, @mobile=mobile
where (@addressID = addresses.addressID)

END