Things just keep getting worse :'(

[Npsen]

A month ago, I posted about one of my orchids found here:
http://www.orchidboard.com/community...-oncidium.html

Well since then I've re potted it , I used Dyna Gro, And increased my watering and it seemed to be okay...

This week though...Well I have 3 green leaves, and one that is half yellowing, one brown Pseudobulb , one yellow and one still green .

I've noticed a black sticky substance at the base of the leaves and Pseudobulb, and these black and brown spots all over the place :S I don't know what to do.