i think your a bit confused i bean on the website for Zimbra mail 8.04 LTS is just the one they've tested on , it does not mean that it will not work with 9:10 . Installing it
1) go into ubuntu 9:10
2) download into the downloads
3)go to download other click extract here
4) now open up the Terminal change to it by typing :
( 64bit will be a different folder just change it as needed )
5) give it the right to run :
sudo chmod +x install.sh
and run it by :
, say yes if it say's :WARNING: ZCS is currently only supported on Ubuntu Server 6.06 and 8.04 LTS.
and wow i hope !!!