Neeed help before evenement

Hello all
Last time (some months ago i think) there was a GP event
And I DIDNT RECEIVED ANYTHING AT ALL! and i played double the time u should must played for the GP!
SO U REALLY NEED TO HELP ME!
i know how to make a port open to my pc AND router
SO NOW i only need to know what port crossfire uses for my pc does anyone know that
ore can tell me how i can know it
thanks !!!!!

EDIT!!= Pc done
Now the router!