I want to install Thunderbird 2 on my laptop, which now has Ubuntu 10.04 on it. I'd prefer to use the Ubuntu package system if that's possible, but with all the tools included in Ubuntu, only Thunderbird 3 is offered, and I don't like Thunderbird 3.
Is there an older package repository I can point to or something like that?
Step-by-step instructions would be appreciated; while I'm a relatively experienced Unix user, I'm fairly new to Ubuntu, apt, and desktop Linux in general.