Have a Alesis Nitro Drum Module and trying to get it installed into MC7. All the drivers are installed and the drum module shows in the computers device manager and is installed correctly. Module is plugged in and on. Can't seem to get it to show up in MC7. I am sure there are instructions, demo or video out there, but haven't seen it for MC7. Hoping someone out there can point me in the right direction. Thanks in advance, Joe. 

Welcome to the forum.
What OS are you using? Is it 32- or 64-bit? Ensure you have the correct drivers for your OS.
Are you using an audio interface? If so, which one?
What Driver Mode are you using? Press P on the computer keyboard to check that.
Where are you looking to see if it "shows up"?
Have you updated MC 7? I don't know if there are updates, but you can check at the Cakewalk web site.