Elevator program problems

http://pastebin.com/yVC1Rv5E
I'm trying to create a redpower frame elevator using computers, unfortunately I get an error
bios:338: [string "elevator"]:2: '=' expected
when I delete the line I get the same error on line 14 as it has basically the same code on it
bios:338: [string "elevator"]:14: '=' expected
I realize it's telling me to put a = somewhere but I have no idea where. Also if I delete the 2 lines and start the program it simply ends.
I'm very new to coding and really have no idea what's wrong. All this program is supposed to do is check for redstone, detect what colours are being inputted and then assign some variables to numbers and pulse either the black cable or white cable.

Split into new topic.

Sorry for saying that, but almost everything is wrong…

I test you program in my computer and the problem is that you are put everything(almost) in the wrong sequence, eg.:

you put :

req - cur = uu

correct:

uu = req - cur

The thing is that you put in the wrong order, look after I fix it:

http://pastebin.com/jeE6Y16k