Hehe, I meant for Jack to post a pic but you posting is helpful, take the fan as you have it there, 'leapfrog' the heatsink without changing fan direction and mount it on the other side, once it is on the heatsink you want to be able to see the four 'legs' that hold the hub onto the fan housing, and that fan is between the heatsink and the exhaust fan mounted on the rear of the case,
I'll post a better picture when I get to a pc in the morning for you,
Moto