Install on Debian

Hi everyone

I'm trying to install 24X7 Scheduler (i downloaded it from the website 3 weeks ago, for evaluation purpose) on a Debian 6 64bits
It's a Virtual Machine, fresh install, I just added the sun-java6-jre

when i run the setup.sh , here is the message :
> ./setup.sh nogui /opt

INFO: Running console mode installer.
IMPORTANT: For license terms and conditions read LICENSE.TXT file.
INFO: Installing into: "/opt"
INFO: Using TEMP directory: "/tmp"

> ls -l /opt
total 0
>

I'm quite lost with it, don't know what i'm missing (probably something really basic)

Thanks for your help

Yann