Requires Mac OS X 10.2 or higher
11-4-03 by Laine D. Lee
Use iDVD1to3 to allow iDVD version 1 themes included with iDVD 3 to be available in iDVD 3's Themes section. Just drag your iDVD 3 folder onto iDVD1to3's application icon. Next time you launch iDVD, you should see a new menu item named "Default" in your Themes selection pop-up menu. When you select it, you should be able to access the iDVD 1 themes for use in your iDVD 3 projects.
This applescript applet will modify system attributes of version 1 themes included with version 3 of iDVD. It will probably work only if your installation of iDVD 3 is unmodified.
iDVD1to3 is free.