SP Upgrade 2.1.25 / 3.0.18 2013-08-27

Upgrade Joomla from 1.5 to 3.0 (or 2.5, 1.7, 1.6)

Note: Anything below is mentioned for version 3.0 goes the same for 2.5 and 1.7 and 1.6. The component is able to migrate to all 3.0 or 2.5 or 1.6 or 1.7.

Migrate your old sites from Joomla 1.5 to 3.0 with one-click and keep safe your Google Rank. All 3.0, 2.5, 1.7 and 1.6 releases are supported.

Now migration to Joomla v3.0 is easy and safe. The component read directly from your old 1.5 db and save to the new 3.0 db using core Joomla functions. By utilizing the Joomla core functions the loaded components are build in the database, as if you create them manually, but keeps the same ids. That means 100% compatibility, stability and utilization of the new Joomla features (expanded access control system and nested categories).

detail:
http://cyend.com/extensions/extensions/components/5-upgrade-joomla-from-15-to-16