Updating joomla 1 0 to 1 5
The following planning and step by step instructions are to migrate your website from Joomla 1.0 to 1.5.
Once you get to Joomla 1.5 you can follow the migration step by step for Joomla 1.5 to 3.
If you are upgrading Joomla directly from version 1.5 to version 3.0, please follow this guide, the steps are the same as upgrading to Joomla 2.5.
This is a guide to manually transfer you galleries from a Joomla 1.5 site to a Joomla 2.5 site.
To do this, read the tutorial provided on the Joomla Docs Joomla 1.0 to 1.5 migrator Once done, download and install JUpgrade which is a component that will upgrade your Joomla 1.5 site to 2.5 Once you have Joomla 2.5 up and running, enter the admin panel and go to the component "Joomla Update" and select the global "options" icon (top right in your screen).