Can you make foam in the particle system?

Hi im making a scene in blender 2.49 with waves crashing up against a beach but i don’t know how to make the foam do you use the particle system or is it a very complicated mesh.

You have to use 2.5x for this, but the effect looked pretty good. I remembered seeing this tutorial awhile back.

http://www.blendernation.com/2011/04/27/realistic-foam-tutorial/