96 Lumina - leaking heater hose connector

After I finished the LIM gasket and was putting everything back together, I noticed that the old plastic connection piece (http://www.amazon.com/Dorman-800405-Heater-Hose-Retainer/dp/B000CIT1DM/ref=sr_1_2?ie=UTF8&s=automotive&qid=1297993164&sr=1-2) was broken, so I got a new one and replaced it. On start-up the coolant began to leak from the connection. So I removed the whole quick disconnect and replaced with a new one (http://www.amazon.com/Dorman-800-401-Heater-Quick-Connect/dp/B000CIR1QG). After I start the car it's leaking again. I'm at a loss here, what could it be, the leak is coming from the actual connection, not from where the connector is inserted into LIM. The metal pipe has the plastic connector and the o-ring on it. All the other plastic parts stayed inside the Heater Hose connector.
http://i3.photobucket.com/albums/y64/JHendrix/IMG_0733.jpg

Figured out the problem, I have to bolt down the metal pipe deeper into the connector.