Car: 88 Crown Vic.

I put in a new radiator because the old one began leaking.  After
installing the new radiator, I realized that the top metal line that I
attached to the new radiator had started to leak fluid from the back of
the fitting rather profusely, back onto the fluid line and down onto the
radiator lower hose and splatteing on the engine, where it burned and
smelled fantastic.

I backed it off of the radiator a bit and it leaked less, but didn't
stop.  I can't seem to stop it leaking.  I can replace an alternater or
starter, but I've never dealt with metal fluid lines before now.  What
do I do to make the $*&#!@ thing stop leaking my precious fluid?  Do I
have to get new lines or is there a better way?  Someone was talking to
me about cutting them down or something, but I'm not doing jack until I
know the *right* way to fix the problem.

Thanks in advance.
~Jody