back up sql database after passwords for user table cleared or hashed?

Hey Guys. i need to BACKUP DATABASE Northwind TO DISK='C:\Northwind.BAK' WITH MEDIAPASSWORD='mssqltips' but i have a user table, with passwords i need to hash or remove. but i am not sure how to do this with out messing up the data, i need to keep.. thanks for any ideas.. -m

nm. just copy db to new db name. edit out crap, back up, and done. ----- Excess quoted text cut - see Original Post for more -----