[Adrian Schneider]

Here's your general problem:

PHP Code:

eval('print_output("' . fetch_template('MAIN_TEMPLATE') . '");'); 


Stops executing the script, and prints (evaluates) that template. So, before you call that, you'll need to set the other templates as variables like this:

PHP Code:

eval('$navbar = "' . fetch_template('navbar') . '";'); 


Then $navbar will be available in your MAIN_TEMPLATE.

Prior to including global.php, be sure to populate an array of all the templates you plan to use and name it $globaltemplates, so vBulletin can cache them for you.

(Do read that tutorial)