The small nipple goes to the bottom side of the air cleaner for the ThermoVac valve.

The TVS hoses run toward the rear of the engine along the valve cover rail, then branch off where necessary. http://thefirstgensite.com/library/partscounter/illustrated/vacuum/vacuum1.html scroll down to the appropriate page.

I sympathize with you on the memory loss, I had a "stroke-like epsiode" back in 1990 and lost a LOT of learned skills and information. Relearning is possible, but I have to work at it. Keep at it, some stuff may soon sound vaguely familiar and it gets better from there.

Feel free to browse my library for a lot of info. http://thefirstgensite.com/library/librarydex.htm