Bummer man! If they didn't send the heatsink, what did they send?
Not to rub it in, but my wife called and said I had a package from CoolerGuys. It was my ThermalRight SK6. Only problem was she hogged my computer until after 10:30 tonight. I didn't feel like installing it that late. Just got my P3 700 yesterday and want to play with it tonight.
I hope you get your heatsink tomorrow.