creating a password with MDB

Ineed to create password access to a site.The usernames and passwords will be stored on a MDB so when the person logs on if the password is incorrect they will be redirected to a error page . If they are successful they will enter the site.
How do I do this?
my script will use the following connection method to the database

<%sql="select * from users where usename like '%"&username&"%' AND pass like '%"&pass&"%'"

Set OBJdbConnection = Server.CreateObject("ADODB.Connection")
OBJdbConnection.Open "driver={Microsoft Access Driver (*.mdb)};dbq=e:\users\names.mdb"
Set RS=OBJdbConnection.Execute(sql)%>

ASP Design Tips - Login Page
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