reply to germ65
Re: Crappy AT&T install uuhhmm....I hate to say this to you OP but with that enclosure, I would seriously consider cleaning / re-wire everything up and even maybe bring in the connections inside the house.
I understand you feel disappointed with how they ran the wire and how they forgot the screw, but with that kind of wiring, I think you're over reacting to the whole situation.
I would leave the U-verse NID and the main cable connection outside, then bring in the rest, specially that amp. I used dielectric grease on my cable connections outside to prevent moisture from coming into the connectors.
Believe me, there are much worse installs than yours....
my .02 cents..