Jaylar, no worries. There are many more knowledgeable people than me on here, but i'll try and explain.
The cheapest way of making bikes is using what is known as 'plain gauge' tubing, this is essentially scaffolding poles! So, if you cut the tube in half along its length the walls of the tube are the same thickness all the way along. This is heavy. To reduce weight you can introduce what is called a 'Butt'. A single butted frame (or just butted) is thicker at one end than the other. Double butted frames are the same thickness at each end of the tube, but are thinner in the middle. Triple butted tubes are thicker at one end than the other, (they sort of go fat, butt, thinner, butt, thin, butt, thinner).
Most butted frames, be it single, double or triple are only butted on the main triangle - the rear stays are too thin and take to much load to do it. Have you ever flicked your fingers along the tubes of your (steel) bike, or of different bikes? You'll notice that real cheap bikes have a dead, dull sound to them, expensive bikes have a satisfying 'ping'.
So in this instance I am particularly after triple butted Project 2 forks. They are the lightest ones Kona produced - by a good few hundred grams iirc. They also have a bit more flex to them, so absorb a bit more of the trail buzz.
Hope that helps.
Cheers