http://www.filz.us/files/cde8094c/e67/full_body_jog_test.swf

i find full body easier for me.
cnc appreciated

The resizing is sort of a problem here. I suggest using lines as guides or use a grid to avoid resizing if you want the loop to run smoothly.
It doesn't look like he's running nor jogging (more like walking). The person movement is too slow for it to be seem as running/jogging. Try studying on the positions of a person running/jogging.
Also, the head needs some movement itself. Even if the person was walking, the head would still require some movement to make the animation seem more life-like.

I pretty much agree with JFlash on this, especially the head movement and the posing.

The best way to go about animating a good fb character in flash is to construct the figure out of shapes instead of just drawing an outline each time. moving shapes is easier to keep consistent and avoid re-sizing. If the shapes look good, then make a layer above and draw your body outline over it.

You are starting to get a good grasp of easing with what you have though! Keep it up :D