As our wiki points out, PearPC's development sort of ground to a halt when it became possible to run OS X natively on the x86 platform. At that point, most users didn't have much use for the emulator.
PPC Emulation is still very popular, of course. There are many people who use SheepShaver. But the usage is different: most people use it to support their old software from back in the day.
For what it's worth, I'll point out that you are not using the most recent version of PearPC. There is a .5 release from July of last year:http://emaculation.com/doku.php/pearpc
I also suggest that you read about the redscorp build of PearPC, which is experimental:http://www.pearpc.net/viewtopic.php?f=10&t=5523
I think it dealt with networking at some point. Maybe start on page one, and keep reading until you find something. :)
Sorry we can't be of more help.
Thanks for putting me out of my misery, kind of :-)
I'll hang on a little longer to see if Cat_7 has any suggestions.
So has Mac PPC emulation completely died or moved to something else like SheepShaver?
BasiliskII seems fine for 68k emulation, I have a few Hypercard things I'd like to resurrect.