Login box in right column

[Guest]

I want to see the login box in the right column when the user isn't logged in. But the following script isn't working

 

if (tep_session_is_registered('customer_id')) include(DIR_WS_BOXES . 'order_history.php')

else { include(DIR_WS_BOXES . 'login.php');}

 

 

Also, I don't need the languages and currencies box but when I delete the code, the right column doesn't appear.

 

Any help?