Are you refering, in question 1, to the mans footwork or the ladies? The lady IS doing a "heel turn". As for the man, he is turning on the ball of his foot. I assume you are meaning the mans second step, his Right Foot. It is up so his heel shouldn't be touching.
Question 2, the two most common entrances to the pivots are the Twinkle to Promenade/Hover Telemark OR the Natural Spin Turn. Either one is fine, it really just depend on your style. I think American favors pretty much the Twinkle to PP/HoverTele. While Intl favors the Natuarl Spin to Pivots, until much later on. Then you can enter with Open Naturals or the HoverTeles. There is also a running chasse from Promenade that I do and see used ocassionally in upper level International dancers. I don't really ever see it used in American style but I like it and it works fine.
For Eric, Let me see if I can interpret what you are saying.
Twinkle to PP/ HoverTele to PP
123
Pivots
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So you are in PP on beat 3. On beat 4, mans right foot, he must swivel/pivot to close up to the lady. The actual PIVOTING isn't happening yet, because the lady is not pivoting with you. But YOU are pivoting, closing your hips and feet around to the right to line up with her, being sure not to turn your top to the right as you do this. THEN the couple is free to pivot together with the mans left foot going back. Perhaps you are already doing this, I couldn't tell from your post. But if things feel klunky perhaps you are just not taking the time to line up the bodies before starting the actual pivots. Just something to think about.
Larinda