This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
To get the JLabel to move left you need a non–zero weightx value for it. You can control the relative sizes of the two columns by adjusting the relative weightx values for fluid resizing. You can set a border on the JLabel as a visual diagnostic to see what size it is in the layout.