FYI

RTL8139 support in Linux can be buillt into the current Linux Kernels with the following steps...

1. configure the kernel as normal
2. a. type one of the following

export CONFIG_RTL8139=m

or

export CONFIG_RTL8139=y

( y is for building it INTO the kernel, m makes it a module )

3. run your normal makes (make dep; make clean;make bzlilo)

4.  all done.