If the port is not coming up at all, then it's likely a cabling issue as Jody pointed out. If you are connecting to a switch, you may be able to enter the "mdix auto" command under the interface on the switch. Not all models support it, so it depends on the switch you're using.
Interface 4 should be your WAN port. You should be able to apply an IP address directly to that port rather than to a VLAN if you like.
If you're just trying to get the config over, is there some reason you can't simply do a "show running-config" on the old device and copy and paste that into the new one? It's quicker and simpler unless there's some technical reason or policy which prevents it.
