Help! I tried to upgrade to 2.5 today and at first deleted by entire blog (I host it on my own server). I've now managed to recover the blog (it's still not the correct theme but that's the least of my concerns at the moment).
Right now...I can't access the admin page at all - this is the error I get when I try to go to the site admin area:
Fatal error: Call to undefined function wp_admin_css_color() in /usr/www/users/robinlin/blog2/wordpress/wp-admin/admin.php on line 29
Please help -- I'm not the most technically savvy person...but seriously this is really causing me a lot of stress.