Trans fluid in the Cooling system

I got trans fluid in my cooling system, so I replaced the radiator and
the upper hose, and flushed the system with a DIY kit.  Anyway I ran
some Super radiator flush through and I am still seeing quite a bit of
fluid in the new radiator.  What is the best way to clean out the
system do I need to replace all the hoses and do another flush?
Suggestions.  I don't want to fill it with coolant and have to dispose
of that stuff again.

Corey