Prism2 driver

[mixo <mixo@coza.net.za>]

After installing 2.6.4 kernel, the driver for 2.4.18 kernel does not get 
loaded. In fact I get
  modprobe: Can't locate module prism2_cs

and, from insmod:
prism2_cs.o: prism2_cs.o: unresolved symbol p80211netdev_hwremoved
prism2_cs.o: prism2_cs.o: unresolved symbol p802addr_to_str
prism2_cs.o: prism2_cs.o: unresolved symbol register_wlandev
prism2_cs.o: prism2_cs.o: unresolved symbol p80211netdev_rx
prism2_cs.o: prism2_cs.o: unresolved symbol unregister_wlandev
prism2_cs.o: prism2_cs.o: unresolved symbol wlan_setup
prism2_cs.o: prism2_cs.o: unresolved symbol wlan_unsetup

This would be understable if I was trying to load ther driver under 
2.6.4, but this is under my old
2.4.18.