this problem has been solved by email. the problem come from Redirection plugin..
i’m not a wordpress developer but, yes, it is strange when i can’t find “do_plugin_install” function in WP 2.8 ( wp-admin/includes/plugin-install.php ) is it deprecated?
i’ve tried to install it in WP 2.8.5 (using PHP5) with NO problem…
FCG plugin use mootools and hybrid use jquery. It is conflict issue…
i think the problem is from your theme. please check your theme’s files, for example category.php
if you find code the_excerpt(); change it to the_content();
