Hi, I have downloaded the tar.gz and extracted it, but there is no configure file so I don't see how the ./config, make etc sequence can work, and I don't understand the build instructions on the Mozilla website. I'm not even sure those instructions are for what I have downloaded and extracted. Can someone do me a step by step guide please? Sunbird is in the package manager but it is an older version, and the mozilla website recommends getting the most recent version. Many thanks.