Not recognising USB devices

[Dave Smith <Dave.Smith@dsl.pipex.com>]

I'm running 3.0 with 2.4.18-bf2.4, and I have a HP Photosmart 7150 on 
USB. In my dmesg I see :-

usb.c: registered new driver usbdevfs
usb.c: registered new driver hub
usb-uhci.c: $Revision: 1.275 $ time 10:29:43 Apr 14 2002
usb-uhci.c: High bandwidth mode enabled

and when I plug the printer in to the USB port I get :-

hub.c: USB new device connect on bus1/2, assigned device number 2
usb.c: USB device 2 (vend/prod 0x3f0/0x3a02) is not claimed by any 
active driver.

However lsusb -vv gives no output at all, and my /proc/bus/usb directory 
is empty.  I'm lost and confused in the world of google.  I've looked at 
linuxprinting.org but could not find anything relevant.  Any ideas as to 
what I should do next?

Regards,
Dave