I just upgraded to Finale 25 and want to use the garritan jazz & big band 2 DVD library I bought a few years ago for a big band arrangement i am working on and I Cant use it. Sound Priority map only shows SmartMusicSoft Synth.
The Score manager sound column has "edit player.." in red. I can see from there Kontakt 5 and see the big band instruments but I can't correlate the midi channels, I loaded a multi rhythm section but no sound. 
HELP!

NOTES: on the Garritan website says under "using older version of the libraries" directs you to an upgrade link for $49.99 ( which I can't afford now)

I paid full price a few years ago to being able to use this sounds, there's got to be a way

System: Imac 27', OSX El Capitan,  Finale V.25