After you've upgraded...
First, copy the code from the first text area to the left and paste it in your "About Me" section.
Next, click in the next text area to copy the code. While on Myspace, hover over the Profile button in the top navigation, and click the Customize Profile link.
Once in the customize area, select No Theme. Next, click CSS, and paste the code in the text area provided. Finally, click the Preview button (top left) to ensure everything works correctly, then click Publish (top right) to save your layout.