Connecting Linux Mint to WiFi network
This answer assumes that you can connect your machine to the network using a cable and so get internet access. If that assumption is wrong, let me know and I'll modify this.
You need to install the driver for your wireless card. The driver support table of the Linux Wireless page lists it as supported so you should be able to get everything working by simply running:
sudo apt-get install firmware-b43-installer
If this does not work leave me a comment, you might need to tweak it a bit.
Further reading:
- http://forums.linuxmint.com/viewtopic.php?f=194&t=139947&start=20
- https://help.ubuntu.com/community/WifiDocs/Driver/bcm43xx