Based on the below requirement is any custom web module or sample code is available...

In openerp 7 first time user login redirect to "Usage Terms and Condition Page". [Any hint after the user login how to redirect the content page and after clicking the button to update in database).

If user accepted terms and condition by checking the boolean field and Accept button. [to update in res_users table isaccept boolean field to true] isaccept is true then only shows the assigned screen to the user.