OJ doesn't make them for our older boats. I installed Alloy Marine brackets. You have to cut out a notch in each side of the platform to clear the eyelets above the deck or the deck won't lift off the bracket.
Pic on post #18: http://www.mastercraft.com/teamtalk/...1&postcount=18
OJ seems to prefer to address the issue with one email, and no follow up. Same thing happened to me last year.