Display *specific* user information on order_print.php

[perkolated]

I must display the shopper's last name (and just their last name) at the bottom of order_print.php

After being and order is printed, it goes into a binder alphabetically.  This helps us find the order quickly when the customer comes to pick up and pay for their purchase.

I figured it out in the old version (using $dbcart), but VM2 has me stumped.  I'm not a programmer, but I'm the one that has to make this happen.

Any ideas fellow templaters?