Trigger Systems skimmer

[sunburnt]

This skimmer came (in pieces) with the tank I just bought. I think I put it together correctly (It must be custom because it's different than the ones on the site!), but it's not all there! I see TXHARLEY and FISHY7 both run them. Pointers or advice, anyone?
I am in SO FAR above my head.

 

[aw2]

I've heard they're great skimmers.
That's DEFINATELY missing the intake cover, where you're asking if it's missing the top.
The closed top, on the skimmer collection cup is something i'm not sure about. I dont see why it wouldnt be solid though.