Scripts with multiple versions have been merged.
1) Joomla -> 1.5.26 and 2.5.6
2) Drupal -> 6.26 and 7.14
3) Moodle -> 2.0.10 and 2.3.1
4) Typo3 -> 4.5.17 and 4.7.2
If you wish to install the older versions of the above scripts just go to the script’s install form and choose the version you wish to install.