do you have?
a file: /etc/yukon/system/x86 containing the text: LDPATH="/usr/lib32/yukon" ( or /usr/lib/yukon for 32bit only systems )
a file: $HOME/.yukon/conf ( i gave you one in the archive )
running yukon spits out any error?
running yukon <some-application> spits out any error?
using my conf file, after the application has loaded you press F11, wait about 10 seconds, and press F11 again, exit the application, check out the output folder ( configured in the $HOME/.yukon/conf file )