After searching first, I couldn't find any other posts here about this seemingly simple problem.
On my new site news.tourslovakia.net I have three advertisements which repeat on the right hand sidebar, linking to the product we're offering.
I placed those three sidebar adverts using the Appearance>Widgets>Text option in the menu. The point & drag widget thingy made life quite easy.
However, when you click on an individual story, the page doesn't show any sidebar advertising at all.
Ideally, I'd like one of those long sidebar ads displayed on every page the reader goes to. I've tried pasting different things into different places in the Appearance>Editor>Sidebar.PHP page but the banner ad ends up in the most bizarre places; normally at the bottom of the page!
I'm running the standard "Twenty eleven 1.2" theme which is nice and clean.
Any help (in non geek-speak) would be greatly appreciated.