hi friends,
i am beginner in zimbra. i have to configure zimbra on Ubuntu 8.04 so can some body guide me from begining. which zimbra collabration suite tar file should i download.

Zimbra Collaboration Suite 6.0 or Zimbra Collaboration Suite 5.0

well i am downloading tar file ZCS 6.0 of ubuntu 8.04 lts

any help n support will be highly appreciated.