error w/ "insmod rtl8139.o"

Hi,

I am using redhat's linux 8.0, kernel 2.4.18-14 and I am trying to install a D-
Link DFE-530TX+ ethernet card on it.  I was able to compile the latest 
versions of "rtl8139.c" and "pci-scan.c", which I got from 
http://www.scyld.com/network/rtl8139.html.  There were no errors that 
resulted.  However, when I try to issue the command "insmod rtl8139.o", it 
gives me the error of:

rtl8139.o: init_module: No such device
Hint: insmod errors can be caused by incorrect module paramters, including 
invalid IO or IRQ parameters.
You may find more information in syslog or the output from dmesg

When I issue the command "insmod pci-scan" everything is fine.  It is only 
when I issue "insmod rtl8139.o" that I get this error.  Any information ot 
help from anybody would be greatly appreciated.  Thanks.

-Ling