This week's book giveaway is in the Testing forum. We're giving away four copies of The Way of the Web Tester: A Beginner's Guide to Automating Tests and have Jonathan Rasmusson on-line! See this thread for details.
Did you go through the API documentation? Or the table tutorial whose link is included in the API documentation? Did you go through the examples in the tutorial? Did you go through the sections regarding setting and changing column widths in the tutorial?