[electrux]

Use utorrent to do so . EASIEST way ever!!
Here is the instructions:-

Easiest way to "port forward" is to
just download utorrent > go to
preferences > on the right part,
you will see a box with some
numbers written on it. Just change
the number to the port you want
to open/forward and then remove
the check box of -- use random
port. This is done.
Now to use it, start your sa-mp
server and then start utorrent.
Your server will be online. You can
test too.
IMPORTANT :- start utorrent AFTER
sa-mp server. Or else sa-mp server
will tell that no filterscripts were
loaded and no gamemodes were
loaded.
By starting utorrent after sa-mp
server, i mean quitting the small
icon on taskbar too.
If you just quit the utorrent, wait
for around max. 5 minutes then
start server and then start utorrent
again.
Hope i helped you .