Search!!!

[Jdvn1]

That notice must only be there if you're not a Community Supporter -- I don't see it. If that's the case, though, it does seem like it would address the question pretty well.

That'd make sense, yeah. Right under the System Notice it says:

Welcome to EN World! Please consider becoming a community supporter. A community supporter is somebody who has donated to EN World in order to help cover the costs of very server-intensive, and thus expensive features (in particular, the search feature). The features available only to community supporters are Search, Private Messaging, Custom User Titles and Who's Online. You can also get these features separately.