tunelp don't work on SuSE 8.0?

Hi folks, I've problems with a slow printing on Compaq's Servers using the parallel port; I've told to use the command: tunelp /dev/lp0 -i 7 but I got the message: ioctl: invalid argument /dev/lp0 using IRQ -1 Digging around, I found some messages were the tunelp command isn't supported on kernels 2.4; is this true? how can I overcome/solve the slow printing if I can't assign the IRQ 7? PD: I checked the Compaq's BIOS and the LPT1 port does uses the IRQ 7!!, also I checked the /proc/interrupts file and the IRQ 7 is unused. Thanks in advance, Jean H//