JDUI Brutal Doom Addon Thread

Hi,

This is my first thread, so hello to you all!!

So I'm playing Brutal Doom and a stumble across this addon Moddb.com and try as I might, I cannot figure out where I place the .PK3 files in regards to GZDoom and launching via ZDL? I seem to get The Ultimate Doom title screen no matter what version of Doom I try and launch? They do work and they look awesome, it's just really frustrating, any help in resolving this would be most appreciated!!

Thanks!!