AOD trans fluid spraying out of radiator?!?!

well, this morning after letting it idle for awhile, I lloked under the hood and there was a pretty fast-paced drip coming from the joint of the hard line and rubber hose coming from to the tranny cooler. However, I don't think that's the original problem, as that rubber hose is new and the old one was on there pretty good, pretty tough to take off. So it might be a new thing also, but I thought I tightened it down pretty tight...
Today is the big swap - take out the old rad., spray everything down with brake cleaner, wash and wipe it all , replace all the rubeer hoses, feel the hard lines for corrosion, put in the new crap and see what happens!!!!!!!!!!!!!

well... I think I fixed it!!! Took out the old rad., brakleen'd everything, popped in the new one, cecked and tightened all connections, topped off the tranny, drove to autozone to get some oil and more trany fluid just in case, drove back, and NOTHING. No puddles, no mess under the hood...seems good to go. Feels like 1st gear might've suffered a little damage, but nothing crazy... we'll see if it holds for awhile!
By the ay, i didn't replace any hoses, just tightened the clamps....

Honestly, i haven't pursued the source yet. I know for a fact that there was a loose connection, but only sfter i tried to fix the problem initially, so it couldn'tve been the origianl problem... There was nothing painfully obvious wrong with the rad that I could see without close inspection. So , who knows? I kept the rad to inspect it at a later date, so i'll let ya know if I find anything. Day 2, and so far so good!!
Thanks for everyone's help