I have just bought my first mac, an imac 24" standard model. I am operating on the bigpond network and have a 2wire 2701HGV-W router and am connected via ethernet. I want to be able to open a port to enable faster downloads as my current download speed is around 12kbps...it takes days to get a movie. I am not very computer literate, so if anyone can help me please make the instructions idotproof as i am in that category.