You micht want to check out the Obsidian Order on this forum:
http://www.saberforum.com/index.php?board=18.0Lot's of different threads on how-to-change fonts, and connecting your saber to your pc.
Just make sure you have the right (newest) launcher and a USB-cable that can read-and-write data instead of just charge a thingie.
Simple explenation, if I remember correctly:
- Make sure the batteries are fully charged.
- Check batteries again, really, don't forget to use fully charged batteries, your saber has to stay turned on throughout the process
- Install launcher
- Power-up lightsaber
- Connect lightsaber and PC through USB-cable
- Wait
- Wait a bit longer to let the drivers install correctly
- Launch/open Laucher
If all goes well it'll automaticly recognize your saber and you're ready to play with the settings.
Stay in the Obsidian part of the laucher, since you don't have the other drivers (Emerald or Diamond)
That's my quick explanation, but please check out the Obsidian part of this forum.