Rescued Orchid -- need advice!

[oceanwithin]

Hi all,

A few months ago, I rescued an orchid from Lowe's which looked like it was in horrible shape. Poor thing was somehow blooming beautifully while tipping over, dead roots grown out everywhere, withering up, and severely in need of some TLC! The tag identifies it as a "Den. burana sunshine" and it has 3 long stems, the largest of which is at least 12" long. Soon after bringing it home and repotting it, the leaves on 2 of the stems fell off and more of the roots shriveled up. The 3rd stem dropped few leaves but otherwise looks happy. The other two stems pretty much look dead and feel a bit squishy to the touch. My question is, should I just leave it be? Or try to remove the dead stems/roots and replant the healthy part? This plant is leaning over quite a bit and is pretty unbalanced due to the way the stems angle out over the pot, so I would like to remove the dead parts and re-situate the stem that is still growing but I'm not sure if this is a good idea or not.

Thanks in advance!
(I'm pretty new to orchid's, by the way... )

Kelli Bricker
Chandler, AZ