>Well, I don't have any practical experience with Web design. Nor did I analyze how the current setup is implemented. So the following may seem like a stupid question. Would it work if you create a table with two cells (vertically), place the entire messages + advertisements into the first cell (at the top), and the buttons into the second cell (at the bottom)?

Yes, that would work but it's not the approach we want to take. Making everything in one table will make everything appears in one shot after the HTML has been completed received which is something we don't want to create as an effect.