I have the Airbus X A320/321 Extended. My  VoxATC was working fine, until I installed FS2Crew. VoxATC was occupying window15 and window16, but FS2Crew took them over for FS2Crew Main Panel and Configuration Panel. However, when I try to click on the panel for these two, my VoxATC panels are what pops up. I assigned a key for the Autofeather (arm/off), but that still doesn't make the main panel pop up.

 

How can I make both FS2Crew, and VoxATC coexist on my Airbus?

Never mind, problem fixed after uninstalling the Airbus. I then installed the Airbus again, and before adding VoxATC, and installed FS2Crew first, which turned out to be better, since I didn't realize there was an update to FS2Crew. Everything is working now.