The following documentation is available:
The Wiki contains now the TA-Linux documentation and also lots of additional tips, hints and information.
Other good resources for help is chatting directly with one of the developpers on [lurl=irc]IRC[/lurl] and using the [lurl=forum]Forum[/lurl] and [lurl=maillists]Mailinglists.[/url]
TA-Linux howto
Contains installation and basic usage instructions. Outdated right now.