Aha! Well, I'm glad I could help you sort it out!
It still kind of looks like you have some extraneous code in there for some reason (actually, that indicates a bad cut/paste might be the original culprit). Try viewing that same page again, and make sure to click the Text tab at the top right of the edit area.
I see this:
[wpvideo lwuMzeOv w=640<span class="Apple-style-span" style="font-size: 26px; font-weight: bold;"><span class="Apple-style-span" style="font-size: 13px; font-weight: normal;">]</span></span>
But it should be this:
[wpvideo lwuMzeOv w=640]
Watch out for that kind of thing in the future, it could definitely cause similar sizing troubles (or other unexpected troubles) if you have extra HTML sneaking into your pastes.