The photo I posted is the worst out of all of them. The rest has a slight blur not noticeable to most people but to me it is.
So this is what I can tell you..I did use the XTi Camera Body I'm sorry I mis-spoke on my first post!
1. I did let the camera decide on what to focus on.
2. I was using a tripod. At the time the photos were showing up clear as a bell on my little 3" lcd
screen. So my bad I should have upped the Shutter speed to 1/100 or 1/120th.
3. I think your right in saying my DOF was way too narrow to get everyone into focus.
I guess the only way you learn is from your mistakes.
I think your biggest problem is letting the camera decide on what to focus on. That's a no-no. Always choose which AF point you want to use.