I am trying to install a Winmodem on a Red hat 9.0 system. It iuses an Ambient Technologies chipset (now Intel) and I have downloaded and compiled the drivers as follows:

driver package: Intel536-460-1-R90.tgz from the Intel website.

My kernel version is 2.4.20-8 and I have the kernel source and headers installed. The compile seems to go ok but when I try to install the modem it fails to install. Checking the module dependencies with depmod gives the following unresolved references:

depmod: *** Unresolved symbols in 536ep.o
depmod: schedule_timeout
depmod: __wake_up
depmod: tty_unregister_driver
depmod: __generic_copy_from_user
depmod: tty_std_termios
depmod: tty_register_driver
depmod: pcibios_present
depmod: free_pages
depmod: pci_find_device
depmod: jiffies
depmod: printk
depmod: get_zeroed_page
depmod: *** Unresolved symbols in 536epcore.o
depmod: enable_irq
depmod: schedule_timeout
depmod: __wake_up
depmod: schedule
depmod: __udelay
depmod: tq_immediate
depmod: pci_enable_device
depmod: __tasklet_schedule
depmod: create_proc_entry
depmod: vfree
depmod: free_irq
depmod: interruptible_sleep_on_timeout
depmod: __ioremap
depmod: bh_task_vec
depmod: del_timer
depmod: interruptible_sleep_on
depmod: disable_irq
depmod: remove_proc_entry
depmod: request_irq
depmod: tty_flip_buffer_push
depmod: schedule_task
depmod: proc_root
depmod: __tasklet_hi_schedule
depmod: jiffies
depmod: printk
depmod: add_timer
depmod: __const_udelay
536ep.o: 536epcore.o

I have checked all manner of forums etc. but have not been able to resolve this issue - I have successfully installed other drivers into the kernel so what am I missing?