manuals?

I was sure there was a thread with a web site for getting repair manuals. I've searched and can't find one can anyone give me a shove in the right direction. The old shifter decided to fall apart on the trailer at the ramp this morning. I found the problem the shaft that the handle rides on is stripped. I 'm headed to the store in the am for parts, I'd like to know how to adjust the cables with the new part installed (if needed)
Thanks,
Grady

The site that had them caught on to us and its no longer available.

Thanks IBNFSN,
I found out this morning the control box isn't Mercury so the shop is going to look for parts on Monday. I'd like to avoid the $350.00 price for a new control box.
In the mean time I can look at the boat an wish.