OK I got the PM and I'll wait for the file. 
 
I think we are now dealing with a different issue. You have your audio in place now but your project is silent. So you need to check your signal path from end to end.
 
First you say the metronome is silent. My default for metronome goes directly to my audio interface 1/2 out that's why I asked that. Even if your master buss is muted the metronome should sound. 
 
Check your audio engine is running. 
 
What are you using for an audio interface? 

http://www.cactusmusic.ca/Docs/2%20Tickets%202%20Paradise.cwp
 
Here's the CWP file for others if they want to figure this out.
But yes, audio doesn't play. I even droped a wave file in myself and the meter for the track doesn't move?? 
I would abandon this project , open a new one and drop your audio in that. It's not a busy project so will be no big deal to re build. 

Hold the phone! The audio does play,, There was a empty track that was soloed I didn't see because it was off the bottom. Boy if this was all it was your going to feel silly...
 
Man is it hard to work in 8.5 again!! we could never go back. 
 

Yes, feeling silly! What CW version are you working with? Has a more intuitive/simple workspace? I hate the way some things don't fit on the screen completely. Maybe adjust resolution.

Cactus Music
There was a empty track that was soloed...
 

 
I should have said something; my first check was going to be for a hidden soloed track. Should have just asked if solo button in the mix module was lit. 
 
But there are so many ways to make a project go silent, it seemed like it would be faster to lay hands on.
 

Does anyone know if KevinWhite (who had the same orphan file issue)ever got a resolution? I can drop the files into place but there are multiple files per track that would have to be aligned properly. Seems if I could re-associate those orphans with the project, CW would know exactly where to put them, yes?

You have not told us if the issue was the solo being on. Do you now have audio? 
 
And how would we know if Kevin resolved his issue  We assume he did and moved on.  PM him and ask.
It's sort of bad forum etiquette to just disappear without marking the thread "solved"  
And one of our goals is so a solved thread will also show on google and help many others out there.   

Had to step away for a bit. Audio is back, orphan audio file issue not solved (see original post), thought you might know about Kevins issue as you were helping him with it IIRC, was never marked as solved,...
Thanks for all the help!

Ha ha, I see was me helping him and it was me who wandered off. Such it is with forums.