Here are the pics that I originally posted. I didn't keep a copy of the text.
Since doing this mod Hobie changed the pull-up lever to separate up/down lines which work a lot better. If I was doing this mod now I would use some of those ideas as well. Basically they separated the up/down lines, running the down line on the starboard side and the up line on the port side through forward mounted pulleys and back to exits near the storage pockets terminating in a T-handle. The down line can be cleated to lock the rudder down.
You should look at how the current kayaks are setup for a better idea or check out the FAQ and support pages here:viewforum.php?f=21
I agree with RR's response to your other post (apart from the genius bit!) and would question whether this mod was worth the hassle. It was necessary on the Oasis as I went on to add an extra sail.
It is still working well!