This script is for those that want to position the tooltip on other places than the default.

If you want to move the tooltip somewhere on your screen, move your mouse to 
that position, then press <ENTER> and paste the following line in WoW:

/script GameTooltip_ShouldBeMovable = true; local x, y = GetCursorPosition(); GameTooltip_NewPos = { x, ((UIParent:GetHeight()-y)*-1) }; GameTooltip_SetDefaultAnchor(GameTooltip, UIParent);

then press <ENTER> again.

By default, the tooltip "grows" down and right from the mouse pointer position.
If you want to make the tooltip "grow" upwards and right from the mouse 
pointer position, type in the following line just like you typed in previous line
above:

/script GameTooltip_Point = "BOTTOMLEFT";

The astute reader will probably figure out that you can make the tooltip 
"grow" just like you want it, but I will not include examples on how to 
do so myself.

Hope this explains most of your questions.

Regards,
Anders "sarf" Kronquist.