[theboxbureau]

thanks @serkan. I had already tried that when I did it two things happened.
1) When you clicked on the advert it did not open the advertisers website on a new page. Is there a way to get clicks on adverts to open in a new page?
2) The advert (skyscraper ad in sidebar) was not in line with the rest of the sidebar (i.e. it appeared outside of the sidebar column. Is there a way around that?

One final question – can you place a banner advert in the middle of your post text (in between paragraphs)? Is this done through text box as well?