it appears that position one should have the class of wg-top similar to one-over-two, and also following be added to the layout.css:.oneovertwo .wg-top { width: 100%;}change to :.oneovertwo .wg-top, .oneoverthree .wg-top { width: 100%;}though that didn't fix my problem. I didn't use the top position, or the far right of the three positions, and now the two remaining columsn are smooshed and overlapping overeachother. So I thought seeting the top position1 to be 100% would fix it.
It looks great when I'm logged in and admin is turned off, but once I log out, they overlap each other again.