All in one SEO plugin- Title doesn't working

Hi Everybody,

I have installed, enabled and configured All in one SEO plugin. But page title or post title of AIOS plugin doesn’t working. I have removed site title from blog and theme but still it not working.

Please guide me to solve this. For title my header file contain following code.
<title><?php wp_title('&laquo;', true, 'right'); ?> <?php bloginfo('name'); ?></title>

AISO options configured as following.

Post Title Format:
The following macros are supported:

* %blog_title% – Your blog title
* %blog_description% – Your blog description
* %post_title% – The original title of the post
* %category_title% – The (main) category of the post
* %category% – Alias for %category_title%
* %post_author_login% – This post’s author’ login
* %post_author_nicename% – This post’s author’ nicename
* %post_author_firstname% – This post’s author’ first name (capitalized)
* %post_author_lastname% – This post’s author’ last name (capitalized)

Page Title Format: %page_title% | %blog_title%
Post Title Format: %post_title%

Thanks in Advance.

Thanks and regards,
Gitesh