I'm not sure how you can deduce that support for desktop 6.06 has
ended. It is supported for THREE years - 6.06 takes us to june 2009.
Ubuntu say it is supported for three years but the new 8.04 LTS runs
alongside it for a year - at least that is what the documentation
says. hense why if you install 6.06 you'll find the updates still
work! [whereas in 6.10 they don't].