Isuue connecting to wi-fi on mint 14.1 on a new macbook pro

[Arates]

I have recently replaced os x on my laptop with mint. Everything is morking amazing, except for the wifi. I am not sure what the issue is, but here is the info I got from the comand lspci -nn.
Broadcom Corporation NetXtreme BCM57765 Gigabit Ethernet PCIe [14e4:16b4] (rev 10)
It works fine when i use an ethernet cable plugged into my modem.

I would really apreciate a noob level guide on how to activate the wifi on my laptop.
Please Help
Thanks,
Ben