What I have to do in MT to have hi ID in E-mule. I use NAT for local NIC, and I know that I must adjust port forwarding but how 
I don’t know about the Emule but in Edonkey you should make such rules:
0 chain=dstnat in-interface=public protocol=tcp dst-port=4662 action=dst-nat to-addresses=10.0.0.2 to-ports=4662
1 chain=dstnat in-interface=public protocol=udp dst-port=5081 action=dst-nat to-addresses=10.0.0.2 to-ports=5081
These ports you can modify in the Edonkey configuration.
In your case what is 10.0.0.2 ??
10.0.0.2 is a Windows PC running Edonkey client.
Also, the new Edonkey version supports UPNP so it should make these NAT rules dynamic (not tested).
Emule, edonkey, all the same really..
the solution pass through using dst-nat with 1 tcp and 1 udp port to each client (with fix ip address of course). Then they have to enter these port numbers in their emule/edonkey programs.
OR … use public IPs