you can start by sending back the ThirtyTwos for sure if they're painful, and especially is the ankle circle isn't adjustable. Just grab a Clorox surface wipe or something similar from a supermarket and wipe the boots down everywhere until they're in the same condition as they were when you go them. Don't tell the website you bought them that you've actually worn them on the hill- just say you tried them on and they fit awkwardly. If they ask if you've used them say no and do a damn fine job cleaning them!
It looks like your only problem is the position of the heel supports.
The Focus Boas have the Level 6 liner, which does have those circular supports on it. (The Level 3 and Level 4 liners also have them.)
Check out the boots with the Level 2 liners, which don't have those heel supports to get in you way. Go to their boots page (http://thirtytwo.com/boots/mens/
) and on each boot you can see an image of its liner at the bottom of the page.
The boots with the Level 2 Liners are the STW Boa, JP Walker Light, 86 FT, Maven, Prion, and Prion FT.
These boots are also softer than the Focus Boas, which solves the problem of the stiffness.
If you want to try a different brand, Vans has a similar heel support on their liners as the one you have now, but it's higher up and is completely open at the front, which looks like it would fit you pretty good if that's where your heel bone sticks out.
Here's a Vans liner:
I haven't tried Vans boots, but they look decent and are made to fit with most bindings. Do you're bindings have a cap strap? If you do try Vans boots, keep in mind that on some models the toe section is really soft and would squash down with an over-the-toe strap, unless they've fixed that this season.
Most brands have different liners with the support bars in different positions.
Good luck with finding better boots.