[Lynne]

I don't understand exactly what you want. Is this page in it's own section? If so, just give it it's own layout that is how you want it. Or are you saying that you want this one page (of many in that section) to have a specific layout not used by the other pages in the section? If so, you'll probably have to write a plugin which has a condition based on the $nodeid to give it a certain layout (I've never done that, so it's just a guess that it can be done).

As for the other layout... it may be that you need to flatten the grid in order to give the columns a specific width. Or, have you just tried doing it through added CSS in additional.css?