Upgrading Package

Hi, I am using debian 3.0 stable version.Now i would like to install cyrus21imapd in the stable version.The package is available in unstable version.So how can i configure apt-get for this installation? Can anybody help me? Regards Anoop Anoop.V.K, System Administrator, Amrita Institutions,

Upgrading a Package

Hi, I am using debian 3.0 stable version.Now i would like to install cyrus21imapd in the stable version.The package is available in unstable version.So how can i configure apt-get for this installation? Can anybody help me? Regards Anoop Anoop.V.K, System Administrator, Amrita Institutions,