Need more pics of seat, specifically on either end where it folds in half. Can't tell if you're missing hardware there. It's a fold and tumble
Front brackets bolt to the floor, seat is held to brackets by pins.
Rear is held down by brackets that bolt to the sides of the inner wheel wells.
Bolts you see in the back are where your rear lap belts are bolted down.
I can take pics of all of this in a couple hours and post up. I have a fold and tumble uninstalled at the house.
Best bet for brackets is ebay. Here are some http://www.ebay.com/itm/Jeep-wrangle...r#ht_22wt_1399
85 CJ7 258, borla header, Team Rush, MC2100 ,optima batt, Warn 8274, agr super box 2 & pump, T5 w/ B&M shifter, centerforce 2, superior 1 piece axles, warn hubs 2.5 in lift, 31" BFG MT
85 CJ7 258, A/C, T176, MC2100, Team Rush, Warn XD8000i, superwinch hubs, 3in lift 31" BFG AT/KO