Put portlets on the right

[kraptor]

By default each tab can have portlets on the left and center. Is there a way I can put the user portlet, weather portlet and news portlet on the right of the central portlet?

Thanks in advance.

[kraptor]

What can I do to the "unknown" navigation option, so that all the portlets listed under it are set to the right of the centered portlets?

[kraptor]

There are several comments in the portal_style.css file about adding a third region to the portal layout. Has anybody successfully done this? Any feedback on any changes in the css file are appreciated... Thanks.