How did you installed your downrigger ?

[JeanF]

I will have to install 2 downriggers , 1 on each side.
I hope to install them over the side , ( grrr, i don't know the name of it ) but if you look the welcome page of the scotty cie. you will understand quickly. ( can you tell me the name of it, please ? Thank's ) . Here the link of the installation i would like to do. the third pictures of the scotty web site ( welcome page ) look like the installation i would like to do .
http://www.scotty.com/index.htm
So, what i should i do to make sure the downrigger will be secure ?

If you have some pics, it will be appreciate.