Sorry I'm stupid, but I really don't know where on earth I should add this:
"Add the shortcut [widgets_on_pages id=x] to the page or post in the place where you'd like your widgets to appear."
(in some php?, somewhere in WordPress?)
to be honest I don't understand this either:
"(where 'x' = the id of the sidebar to use (or the name if you have named it such as [widgets_on_pages id=TagCloud])".
Where could I have name this sidebar?
This is my first Worpess site and I'd just like to add an widget to main-content area.