I'm trying to make sense of all of this info, but I find that im even more confused.

Okay, I have a product (seminar registration) which is normally $179.

This item is on sale for $159 if purchased before Jan 1st, 2006.

I am set up, and everything is fine so far.

Now.... I am trying to allow customers to get 3 free registrations if they buy 3.

How do I set this up? -Also, does ZenCart utilize the temporary sales price into this equation?