New to truck camper

Well, I did some more checking today and found that 3 of the 4 turn buckles had come loose and detached. There is a place in the front and rear of the box to attach to. I have included a picture of the turn buckle but am not sure how to adjust them. How tight is tight? I had to realign the camper with the P/U box to get it straight. It must have jumped around during transport. I looked at the quick adjusters as mentioned but they don't come short enough.

I have also included a picture of the electrical panel. One circuit breaker appears to be damaged. I found 2 wires spliced into the main harness coming from the truck that would connect to an aux battery. I am wondering if this was used when no shore power was available. I think you would need to disconnect the vehicle harness though to keep from running down the truck battery.

Staring to clean up things. Put in a full propane tank and the stove burners work. Next to try the heater, but looks like it needs power to spark ignite.

More later and I find out things. Thanks for all the help.

I am not sure if these pictures will work, let me know

http://i958.photobucket.com/albums/ae66/brahlf/P1110680_zps2f6e57b3.jpg

http://i958.photobucket.com/albums/ae66/brahlf/P1110682_zps5ccfefa1.jpg

http://i958.photobucket.com/albums/ae66/brahlf/P1110683_zps9050345c.jpg