Default [Q] Root - Mac / Gingerbread

Hey, I just wanted a quick guide or just a link on how to Root my Samsung Galaxy S - Gingerbread 2.3.3 Baseband v. 19000XXJVO and Kernal Version

I want to do this using a Mac OS

I've tried doing this in the past using my phone and it hasn't done anything so wasn't sure what I'm doing wrong, it always use to say Rooting and stuff but didn't do anything .. sorry this may sound confusing but I really hope someone can help

Thank You,