I'm so sorry about your injury.

I'm recently recovered from a bad case of Achilles Tendonitis. I continued riding through the injury, which probably delayed my recovery to a degree. Regardless, my doc told me that "usual" time for recovery is 3-6 weeks--if you don't exercise. Mine took about 6 weeks. I was on anti-inflams, which I stopped taking after about 4 weeks, and I went to PT a couple times.

My best advice is to be patient. My injury was much less severe than yours, so I would listen to the doc. Did he/she prescribe any PT or will that wait 'til after the boot comes off?

I've added the PT ankle exercises to my usual leg strength work. This is an injury I never want to experience again! I've also started wearing Earth shoes to work (they made cute dress shoes, believe it or not!).