I currently use godaddy to host a few of my sites. I was running php 4.3.11 and really wanted to upgrade to 5.2.5.
When I switched over, by default, go daddy disables register_globals, so you have to either define for register_globals to be enabled in your php.ini file or your .htaccess file.
I chose the former, the php.ini file and accomplished it in two steps.
Step One: Be sure that your php.ini file contains the text below.
register_globals = on
Step Two: Rename your php.ini file to php5.ini
If you only need for register globals to be enabled in a subirectory and not the entire root, then only place the php5.ini file in that sub directory.
That is it. You are done.