Help installing via C-Panel

The following information is required to get an answer:
Get this information from the PHP diagnostic (in the configuration wizard).
Gallery URL (optional but very useful):www.teazin.com (not installed yet)
Gallery version:
Apache version:1.3.33 (Unix)
PHP version (don't just say PHP 4, please):4.3.11
Graphics Toolkit:
Operating system:Linux
Web browser/version (if applicable):

I get this question as to which directory to install in. I am installing via C-Panel/fantastico. I want to intstall in my moduals directory because I am using PHP Nuke. No matter what I use for the directory it creates a new folder. I know I am doing something wrong. This is the install panel wording for my c-panel:

Installation location

Install on domain
teazin.com
Install in directory________________________________________

Leave empty to install in the root directory of the domain (access example: http://domain/).
Enter only the directory name to install in a directory (for http://domain/name/ enter name only). This directory SHOULD NOT exist, it will be automatically created!