FastBikerBoy
Thanks for the link bluzdog. That video explains how to do exactly what you want to do.  Of course it assumes that any recorded tracks are already in time with each other. If they aren't audio snap can also be used to sort that out but that is a different video.

You bet Karl. Your videos have helped me out immensely.
 
Rocky

Has anybody used this app? 
http://soundbytesmag.net/tempo-thelastdawfrontier/
any thoughts?  

It's been discussed before. I have not used it, but basically it's works like SONAR's built-in Fit Improvisation feature but supports resolutions higher than 1/4-note beats. The limitation of both is that you have to created a MIDI guide track that has an event on every beat (or fractional beat that you specify in the case of Maestorlizer); this is not always easy or convenient. Personally, I prefer to use Set Measure/Beat At Now which allows you to enter only as many tempo changes as needed with varying resolution.
 
Here are links to a couple threads in which the author participated:
 
http://forum.cakewalk.com/Free-SONARCompatible-Tempo-Map-Creator-Available-m2832233.aspx
 
http://forum.cakewalk.com/building-tempo-maps-m3065897.aspx
 
If you want to discuss this further, I suggest you re-awaken one of those threads or start a new one as this thread is not really relevant.