Soldato
Or do I have to upgrade to 8.10 then go to 9.04?
LTS version are not every *.04, they are currently released on a two year schedule. 8.04 was an lts, and 10.04 will be too. 9.04 (jaunty) was not an lts.
All ubuntu releases are considered stable, there are no testing releases.
Stable, but i just don't think the .10s work as well.