No network card visible while using PCI RTL 8139D card

might this be useful?

http://www.haikuware.com/directory/view-details/drivers/network/rtl81xx-patching

8139C+ was added to Haiku in revision 35452. I believe 8139D will work too with this change. Try a newer nightly to see if this is fixed.

http://dev.haiku-os.org/changeset/35452

device network controller (ethernet controller) [2|0|0]
vendor 10ec: Realtek Semiconductor co., ltd.
device 8139: RTL 9139/8139c/8139c+

EDIT: I can say it should very well work with the change I pointed out, after seeing this:
KERN: PCI: [dom 0, bus 0] bus 0, device 10, function 0: vendor 10ec, device 8139, revision 20