You'll have to enable the "parport" and "parport_pc" modules. Perhaps you can do that without reinstalling (that's a lotta work). Try this as root
Code:
modprobe parport
modprobe parport_pc
If these modules load, you've likely got your parallel port back. To keep them, Debian has a neat tool for you called "modconf". If you type that command as root, you'll get a nice ncurses module installer. Navigate through the menu to find the parport and parport_pc modules and select them. Once you exit and save, you'll have your parallel port enabled as a module.