Recently I have decided to upgrade my existing Joomla 1.5.25 website to the newest version of Joomla 2.5. Following the documentation on Joomla's website to complete the migration to 2.5, I made a sandbox environment for to test the upgrade. Essentially what I mean by this is I copied all the files in the httpdocs folder to a new location, then copied all the tables (including contents) from the database it was using to a new database, and allowed the same user/pass combination all privileges on that new database. Then I made sure this new sandbox site was working and independent of the live site, which it was. I enabled the mootools plugin, and downloaded/installed the latest version of jupgrade. Changed the parameters of jupgrade to fit those of the sandbox site, and upgraded.
Jupgrade completed successfully, but when I go to visit the upgraded sandbox site, the generic template loads and gives a 404 complaining about a component not being found. I'm not real sure what to do to fix this, as I'm not sure which component it can't find, it seemingly has broken the site. Also I installed the same template (only the version for J2.5) we used on Joomla 1.5.25 (which is rocket theme's hivemind) and switching this to be the default results in an all around 404 message from Joomla as if the page doesn't exist.
The sandbox site that runs Joomla 1.5.25 is located at: http://www.couponerpro.com/
It's 2.5 upgraded counterpart is located at: http://www.couponerpro.com/jupgrade/
Does anyone know what may have caused jupgrade to break our site?