Mine works out of the box with the the 8139too module and the 2.4.29 kernel. Check to see if you compiled this driver as a module in your 2.6.8 kernel. My card info from cat /proc/pci is below.
Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 16).
IRQ 11.
Master Capable. Latency=64. Min Gnt=32.Max Lat=64.
I/O at 0xdc00 [0xdcff].
Non-prefetchable 32 bit memory at 0xde000000 [0xde0000ff].
Bus 0, device 12, function 0:
From lsmod:
Code:
8139too 13928 1
mii 2272 0 [8139too]
crc32 2880 0 [8139too]
HTH