how to save my phalaenopsis orchid?

[suliabryon]

Someone gave us an orchid as a gift about a year ago, and me usually having a black thumb with plants, wanted to do the best by this beauty that I could. My Mom has had great success with her orchids for years, so I called her and followed her advice to the best of my ability:

~ only watered when the top inch or so of moss was bone dry. For watering, I would saturate the moss, let sit for about ten minutes, then carefully upend the pot, holding plant and moss in place and allowing excess water to drain back out through my fingers. Every few days, I might lightly spray the leaves with a spritz of lukewarm water from a spray bottle, thus keeping them dust-free and trying to simulate a moist but not wet environment.

~ when the plant dropped all of its blooms, I carefully cut back the two stalks and waited patiently. My mother warned me it could be a long time for the plant to bloom again, but not to worry, especially if it started growing new leaves (which it did).

A couple of weeks ago, one of the old leaves yellowed and fell off. I panicked, called my mother, but she said this wasn't unusual when growing new leaves. Well, this week a second old leave yellowed and fell off. I might not have worried much, except that this leaves the poor thing with only 1 old leaf yet, and only a half grown, if healthy looking new leaf.

I had been getting ready to repot. My Mom gave me a bark mix to use instead of the moss the plant came with, and I finally picked that up from her recently. Deciding this new falling leaves situation required a look at the roots, I went ahead and pulled it from its pot.

The pot it came in had a drainage hole, which I always assumed any excess water from my watering would drain through. Imagine my horror when I pulled the plant free of its pot to find it jammed into a smaller plastic container with no drainage, and packed so tightly from moss the poor roots were totally root bound and water logged! Even if the the top layer of moss was drying, I'm sure the stuff packed tight into that container has never been getting dry! Here are pictures of my poor, poor orchid. What can I do to save it? What roots do I trim, and what do I keep? Is there any hope??