Seems some people are having difficulties getting networking to work with the Vmware disk images. It seems DHCP isn't working correctly in Haiku under Vmware.
Assuming you have a router, and the router's IP address is 192.168.1.1 and you're using a Haiku VMWare virtual disk image:
ethernet0.virtualDev = "e1000"
Some people may find that you have to change the network in VMware to Bridged instead of NAT if the rest of the instructions do not work. You can do that by editing the network adapter settings right in VMware.
You should now be connected. If you don't have a router, you probably do the same, but give Haiku the same IP address as your physical machine, and the gateway and DNS of your provider.