[Theme: Options] Not working anymore and author is gone

Hi Everyone,

So after upgrading to the latest version of WordPress it appears that the theme I was using is incompatible. When I try and activate it I get the white screen. Unfortunately the author is not around anymore. I’ve installed the theme check plugin and this is what errors it’s showing. Is this something a novice can attempt to fix or am I better off starting over?

Thanks for any help that can be offered!

Jay

REQUIRED: The theme uses the register_taxonomy() function, which is plugin-territory functionality.
REQUIRED: The theme uses the register_post_type() function, which is plugin-territory functionality.
REQUIRED: The theme doesn’t have post pagination code in it. Use posts_nav_link() or paginate_links() or the_posts_pagination or next_posts_link() and previous_posts_link() to add post pagination.
REQUIRED: The <title> tags can only contain a call to wp_title(). Use the wp_title filter to modify the output
REQUIRED: framework/plug-ins/portfolio/lib/wp-framework/Base.php. Themes should use add_theme_page() for adding admin pages.