I am a bit dismayed that Thunderbird 2.0 changed the labeling system to tags and there are no hotkeys for me to colorcode my messages

The extensions I tried to add on couldn't be installed because "it is not compatible with Firefox."

And I wanted to try this: http://kb.mozillazine.org/Keyconfig_extension#Examples

I'm stuck.

Anyone successfully make a shortcut for message tags to colorcode in Thunderbird 2.0?

Thanks everyone for you help
Hotkeys are working today. I am not sure if it's because I downloaded KeyConfig and didn't do anything with it, or just because I restarted the system (which I would doubt since documentation says hotkeys for tags don't work in 2.0)
But it's all good. I can label my emails, even as more than one tag, and I'm a happy camper