I used Printtool to install my printer I applied the command alias parport_lowlevel parport_pc in the /etc/conf.modules So lp0 is detected. But I still get the error: /var/log.messages: "modprobe: can't locate module parport_lowlevel" and I can't print.
What do the files in /proc/parport/0 say?
By any chance, did you recompile your kernel and leave out parport support? Can't reproduce this anywhere.