Head flow question

Well we only flowed 1 port due to time we had available to play with that day.
And the reason I asked on here is that when I went to .org, they have a heading about head flow in the engine FAQ but when I click on it I am returned to the exact screen that has the link to the results, tried it many times.
After clicking the same link so many times it's like wearing that shirt that says "how do you keep an idiot busy? See other side", and same thing printed front and back so I thought I'd come over here and ask.