OK...success with Channel Tools on a mono track.  Here's what I had to change.
 
First, yes, set the interleave on the mono track to stereo.  That allowed access to the stereo controls ... no longer greyed out.  But, adjusting the controls still did not change the mono track's location in the sound stage.
 
I'm not sure what made me think of this but I decided to move the Channel Tools plugin position within the fx bin. It was dead last.  Suddenly, it started working.  So now I had to figure out why.  At first, I thought the Neutron plugin was interfering with it so I deleted that plugin and moved the Channel Tools last again.  It broke again.  I then decided to delete the limiter I had put in the bin.  Channel Tools started working properly again.  Then I realized I was using Waves L1 Mono limiter on this mono track.  I didn't think to change it the stereo version once I changed the interleave to stereo.  So, I swapped it out for the stereo version and now everything works as expected.
 
In short, the mono limiter was nullifying Channel Tools.
 
Thanks for your patience guys...I'm learning every day.

Don't worry, it's happened to the best of us. FWIW, Waves includes the mono versions of their plugs as kind of a "legacy" option. I too find myself using them out of some sort of obsessive compulsive habit. As far as I understand it, Sonar will work just fine using the stereo versions on your mono tracks and not use any extra CPU.

I do not have increased width in the drop down menu.  Might I ask if one of you kind forum folks could take a screen shot or list the settings. 
 
Thanks!
 
LL

LLyons
I do not have increased width in the drop down menu.  Might I ask if one of you kind forum folks could take a screen shot or list the settings. 
 
Thanks!
 
LL

It's not in my drop down either.  I'm thinking it was in an older version...'don't know.

Increased Width Preset:
 

 
 

Klaus
Increased Width Preset:
 

 
 

Wow!  That is soooo strange!  It does not exist in mine.  Is that something you created?

No, that's a screenshot of one of the presets which are included in Channel Tools on my system.
 

Klaus
No, that's a screenshot of one of the presets which are included in Channel Tools on my system.
 

Interesting, I found this Cakewalk thread regarding missing presets in Channel tools after an upgrade.  Apparently, this guy never got a solution to recover the missing presets.
 
http://forum.cakewalk.com/Channel-Tools-Missing-Presets-m2914829.aspx
 

So, after 2 pages of Q'ing and A'ing someone FINALLY tries the solution Craig suggested in the beginning. LOL! :O) Glad you got is sorted now.

LJB
So, after 2 pages of Q'ing and A'ing someone FINALLY tries the solution Craig suggested in the beginning. LOL! :O) Glad you got is sorted now.

 
No, that's not fair to say at all.  I did use Channel Tools right from the beginning but it didn't work for me because I didn't have my track set up correctly. 
 
Anyway, thanks for everyone's input...it's been a learning experience.