Sharon,
I have no idea how to set it up for Linux and I don't think there's anyone in the Radiant Recovery volunteer community who does. I'm guessing if you are useing Sun and Linux that you might be more of a techy than we are. If not, you may need to get someone who knows more about your setup to help you.

I do use Firefox as my browser and I just downloaded whatever Java was available and it works fine. It's Windows though.

You should have received the YLD username and password when you joined YLD. This is what you put in the first time it asks you a user name and password. Then the next time you just put in your name (per the instructions in the YLD manual online at the Radiant Recovery site.

Thanks,
Kitty