With software platforms regularly needing upgrades, switching from Joomla 1.5 to Joomla 2.5 is often a troublesome affair. Website managers must perform Operating System trainings in order to upgrade system requirements. In order to migrate from Joomla 1.5 templates to Joomla 2.5 one must follow the tutorial. Being an open source platform, migrating to simple templates is easy but advanced templates are quite tricky to switch to in Joomla.
Upgrading from Joomla 1.5 to Joomla 2.5 do not require too many steps. The best option for migrations is following tutorials related to jUpgrade and SPUpgrade. Creating a new version of your existing website on Joomla 2.5 using jUpgrade and SPUpgrade will resolve your problem. While upgrading you must take care of proper copying of templates and directories.
In order to do it right all you need to do is access the Joomla website files you have, and move them to templates and directories. When you reach your destination you must copy the entire atomic template and the related directory attached to it. Name this directory. Atomic template is a basic type of template to serve the sole purpose of making the process easier. Atomic template comes free and it can be applied to other base templates.
While migrating from Joomla 1.5 to Joomla 2.5 templates all directories and files must be copied from your existing 1.5 template to the new template. There must be two exceptions followed while performing the above mentioned step. Enter your previous Joomla 1.5 /templates/yourtemplatename/ folder to copy all files and folders leaving aside index.php and templateDetails.xml. Copy everything into /templates/atomicVersatility/ folder. Be careful of every step performed. In the end you must have all the Joomla 1.5 CSS files perfectly copied to /atomicVersatility/css/. Follow the tutorials to know more about modifications required in the destination directory. Your copy paste steps would surely turn simpler if you follow tutorials for Joomla migration.
In order to match your new template folders all you need to do is change the entry within templateDetails.xml. Care must be taken while typing the entries. All other elements must be changed accordingly such as description, author, version and date of creation. Next step for you must be to open the original templateDetails.xml file. Search all the positions section before copying it to your existing clipboard. Make sure after performing all the steps you eliminate all old positions.
Codes and parameters change in complicated template. Do not copy the old Joomla 1.5 codes randomly. Rather modify them and follow the tutorials in order to migrate easily from Joomla 1.5 templates to Joomla 2.5. Writing codes from scratch will be difficult and time consuming and so using appropriate tags is important. After completing your new index.php file, codes can be written according to your needs.
Head tags along with the opening and closing PHP tags must be included properly. Codes must be checked properly before going on with the new template. New templates must be set to default. This makes easier for template management. Template manager might not appear in spite of all correct codes. After verifying the installation of template files ‘Discover’ option must be made to run. You will be able to see your template appear on the list which you can click to install.
Official Joomla docs will be of great help in guiding you to migrate from Joomla 1.5 templates to Joomla 2.5.