I did maybe a month of PT sessions, different exercises to strengthen ankles (mine cave in fairly obviously when I walk/run), ultrasound machine, and those awful awful awful ice tubs. I wasn't allowed to do speed work or run hill repeats for about a month, too.

The IT band/hip flexor stuff came about from just poor running form, trying to not re-aggravate the ankles and getting lazy/sloppy on long runs. I suffered through that marathon and then just stopped running for about a month When I started again I taught myself how to run with more of a mid-foot strike and was comfortable for runs of maybe 2 hours before I wrecked on my bike & put myself out of commission again!

I'm not sure what tendons you messed up, but a yoga class once or twice a week helped me TONS. Strengthening the core and loosening the hip flexors, as well as strengthening the ankles with all of the balance poses...it was heaven. If its your foot that's hurt, they might not help much though. I'd check out different shoes - I had some problems with the tendon running down the inside top of my feet and it was the fit of the adidas I used to run in.