There is a bug in the Joomla 1.5 template called 'JA_Purity', which causes an error like this: Fatal error: Call to a member function getItems() on a non-object in /***/templates/ja_purity/ja_menus/Base.class.php on line 32.

To fix this error, open the file templates/ja_purity/ja_menus/Base.class.php, and replace $menu = @JMenu :: getInstance(); on line 32 with $menu = &JSite::getMenu(); And your template should be fixed. Cheers.