Network game - please please help!!

[mattandbenny]

I'm desperate for a network game, but when we try to join it says unable to connect to server every time. Its a problem my end, as ive tried it with 2 people who have played before and no luck. I have hamachi, have run as server ticked, have the same version of fm but nothings working. When i type in the i.p address it just says cannot connect to server straigh away as soon as i click it, it doesnt even load for a couple of seconds and then say it.

I'm pretty desperate to play a network game, can anyone help me?