Having problems using a custom static front page

I want my blog to be located at http://designmeba.com/blog, and a static page at designmeba.com. I’ve read the WordPress support article on this (http://codex.wordpress.org/Creating_a_Static_Front_Page) but I guess i’m doing something wrong.

To get to the designmeba.com directory, I have to first open the root directors, then go to public_html, then to the folder designmeba (since it’s not the master domain). I’ve already changed the htaccess in the /designmeba directory and added my custom static page template called frontpage.php. I’ve also placed index.php from the root directory into another folder called “blog” and changed the requires (‘./wp-blog-header.php’); line to require(‘../wp-blog-header.php’); . Yet when I go to http://designmeba.com/ I get the following error:

Fatal error: Call to undefined function bloginfo() in /home/webmzuk6/public_html/designmeba/frontpage.php on line 5

Now I know this isn’t a problem with a specific line because I’ve tried deleting it so, yeah,

that’s the problem.