self registration?

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Gallery version (not just "2"): 2.2.4
PHP version (e.g. 5.1.6): 5.2.6
PHPInfo Link (see FAQ): http://luckyshotphotos.com/arc/info.php
Webserver (e.g. Apache 1.3.33): 2.2.8 (Unix)
Database (e.g. MySql 5.0.32): 5.0.45-community-
log
Activated toolkits (e.g. NetPbm, GD):NetPbm
Operating system (e.g. Linux): Unix
Browser (e.g. Firefox 2.0): Firefox 2.0.0.14

Umm, ive seen some screen shots and my admin menu looks kind of short, like its missing some links, such as "Modules".

Also, how do I enable "self registration?" I did a search on forums and looked on FAQ I cant seem to find it.