Got a prob with new Phal...picks included.

[Lene Th.]

I got this Phal for free in the store, course of its condition.
Now im not quite sure how to help this plant, so i hope someone here could give me som instructions?

Its blooming, but the flower looks dryied out, at least two of the smaller knobs and the one flower who still hanging in there. The other knob looks almost fine, just a little dry.
But theres also two new flower-stick on the way, lower down on the motherstick.
The leafs have an almost oily discolor, most underneath but alsow visible from the upperside.
The roots look fine, but they looked pretty dryied out so i gave her some water. Now the roots are green, as it should be right after watering.
Should i cut of the flowerstick above the new one, or sholud i just let it be? Should i give her some nutrition (i have one from Sweeden for use on orchids, kalled Bayern) ?

Help please?

Some picks.