How to set up a hotspot on a macbook
I'd like to set up a hotspot using my iPhone 3G and my macbook. I found an online tutorial for this, but according to this, I should have the option of 'iPhone' listed under Airport and Ethernet in my network preferences, but this didn't come up. I'm wondering whether it's not possible to set up a hotspot on a macbook (bought in 2009, iOS 10.6.8), or whether there's another way of adding the option of iPhone that I'm missing.
Thanks!
MacBook (13-inch Late 2009), Mac OS X (10.6.8)