Meta data on all pages

I have a theme called Apex and I use your plugin. It works on all pages but not on the portfolio pages.
I asked the theme developer and they suggest to use another plugin that works on all their pages but I would like to stay with your plugin.

Do you know why the plugin does not work on the portfolio pages?

This is the theme I use: http://themes.damojothemes.com/?theme=apex_wp

Thanks!

http://ww.wp.xz.cn/extend/plugins/all-in-one-seo-pack/