custom title tag for each category page

Hi everyone,

I’ve been trying to fix this for 2 days now with no luck and answers. I am using “all in one seo pack”.

The problem is I can’t change the title to anything other then it’s name. I’ve tried downloading several plugins including

category seo meta tags

and

category meta plugin

.

Here is my code for header.php:

[code moderated as per forum rules - p lease use the pastebin]

and this is what I have in category title format for all in one seo pack:

%category_title% | %blog_title%

I've played around with the PHP and nothing worked. What am I doing wrong, please help. Thank you!