I am trying to install the ZCS on an RHEL 4.0 AS Virtual Machine (Vmware). But i get an error while installing it. Firstly i got errors about missing components, so i downloaded the RPM's and crossed that hurdle. Now its giving me a disk space error for installing Zimbra core. I have created the virtual machine on my vmware allocating 20GB of disk space and allocating it at the time of machine creation. Can someone help since i need to got onto this fast. My ultimate aim for installing zimbra is to integrate RSA SecurID authentication with Zimbra. Can someone help me with that too in terms of how Zimbra authenticates users and what customization would be required to integrate a 3rd party authentication system ?