In this guide
https://communities.vmware.com/docs/DOC-14189
They said a pcnet driver is avaliable at this address
http://support.amd.com/us/Embedded_TechDownloads/scoodt.zip
Unfortunately link is dead
Someone know if this driver is avaliable somewhere?
Thanks
Found it
If someone if interested
Here is the driver
The automatic procedure don't work
So must be installed manually as explained in the vmware forum
The sco ftp site is still available and has patches and drivers going back to the early 90s.
ftp://ftp.sco.com