Thanks, Hugo. I found the same info from some google searching.

For the benefit of others: You can find the driver at ftp://ftp.linksys.com/beta/linux_full_binary_2_33.exe
which uses a dos/win unpacker that makes you agree to a standard license before it unpacks two modules and a readme. The contents of the latter:

Linux Release 2_33



Linux network device driver for the Broadcom BCM42XX PCI

InsideLine 10Mbps Home Phoneline Networking chip.



This release includes:

- support for HPNA 2.0 Certification Testing

- MODVERSIONS support for Linux 2.2 and 2.4 Kernels.  These 

modules have been compiled and tested with MODVERSIONS defined 

on a RedHat 6.2 system with include files from the RedHat 

2.2.14-5.0 kernel.  The driver for the 2.4 kernel uses the 

2.4.0-test10 kernel distribution from ftp.kernel.org.



Note:  The kernels should be compiled with nonSMP



This distribution includes two il.o executables:



  - \Kernel_2.2.14-5.0\il.o ---> 62545 bytes (nonSMP)

  - \Kernel_2.4.0-Test10\il.o ---> 70695 bytes (nonSMP)

I should get a chance to try this out in a week or so. I'll let others know if I succeed.
(Let's just hope I have a free PCI slot in my only non-SMP machine...)

-j