ilmomasiina | related groups who are running their Ilmomasiina

Move the current version to a backup directory for later reference, e.g. Unpack this new version of Ilmomasiina to either the final directory you are planning to use (if you are sure there aren't users online at the moment) or to a new temporary directory.
Move the current version to a backup directory for later reference, e.g. mv ilmomasiina ilmomasiina_2011
Unpack this new version of Ilmomasiina to either the final directory you are planning to use (if you are sure there aren't users online at the moment) or to a new temporary directory. For example to use directory "ilmomasiina_2012": unzip ilmomasiina-xxx.zip mv ilmomasiina-xxx/src ilmomasiina_2012 (N.B.! Check the directory structure and .zip file name specific to the version you have downloaded before blindly running these commands.)
Update the database name, username and password to new Ilmomasiina's file "DBinterface.php". (You can find this information in the same file on your old Ilmomasiina installation.)
In file "classes/Configurations.php" write your installation root dir (you can find this out with command "pwd", e.g. "/home/yourgroup/www-data/ilmomasiina/"), web root (e.g. "/ilmomasiina"), and admin email (which will be printed on the footer of every page as contact information). (Note that, if you are using a temporary test directory name write that here now, and change it later, when you have tested the installation and moved it to the final place.)
If you want, you can also change the "From" address of outgoing confirmation emails in "classes/ConfirmationMail.php".
Note that the current version of the Ilmomasiina uses Apache server's extention called "mod_rewrite" to make the URLs more user friendly. At Otax you might have to ask the admins (tietotekniikka ÄT ayy.fi) to enable "AllowOverride FileInfo" for your Otax account, if the new Ilmomasiina's links do not work.
When you have tested that the installation works, move the new ilmomasiina to the directory you want (e.g. mv ilmomasiina_2012 ilmomasiina) and make changes to the configuration files you edited at step 4 (unless you already installed Ilmomasiina to the final directory).
Test that both signing up and admin* interface work. Whooh, done!
= If you have problems with authenticating to ilmomasiina/admin, check that the .htpasswd file you are using is in a place where the Ilmomasiina finds it. Or alternatively, write the full path to "classes/AdminPasswordProtector.php" after text "$authenticationOk = ...", e.g. $this->http_authenticate($username, $password, '/home/yourgroup/.htpasswd');