i successfully compiled the zaptel drivers but when i try and load the module it fails gir:/usr/src/zaptel# modprobe zaptel gir:/usr/src/zaptel# modprobe wcfxo /lib/modules/2.4.28/misc/wcfxo.o: /lib/modules/2.4.28/misc/wcfxo.o: unresolved symbol zt_ec_chunk /lib/modules/2.4.28/misc/wcfxo.o: /lib/modules/2.4.28/misc/wcfxo.o: unresolved symbol zt_unregister /lib/modules/2.4.28/misc/wcfxo.o: /lib/modules/2.4.28/misc/wcfxo.o: unresolved symbol zt_alarm_notify /lib/modules/2.4.28/misc/wcfxo.o: /lib/modules/2.4.28/misc/wcfxo.o: unresolved symbol zt_hooksig /lib/modules/2.4.28/misc/wcfxo.o: /lib/modules/2.4.28/misc/wcfxo.o: unresolved symbol zt_transmit /lib/modules/2.4.28/misc/wcfxo.o: /lib/modules/2.4.28/misc/wcfxo.o: unresolved symbol zt_receive /lib/modules/2.4.28/misc/wcfxo.o: /lib/modules/2.4.28/misc/wcfxo.o: unresolved symbol zt_register /lib/modules/2.4.28/misc/wcfxo.o: insmod /lib/modules/2.4.28/misc/wcfxo.o failed /lib/modules/2.4.28/misc/wcfxo.o: insmod wcfxo failed