Read http://kb.mozillazine.org/Links_to_local_pages_...
and pay attention to what they say about the NoScript firefox extension if you have it installed. For me it did work like that.

I followed the given instructions correctly..

Nothing happened when I clicked the "TEST" button; You say an "ACTIVATE" button would appear but it didn't it's just click-able that's all! It doesn't even load after you click the "TEST" button.

Here are some links of the "Print Screens" I've taken. They are not arrange;
http://i46.photobucket.com/albums/f134/aniban12...
http://i46.photobucket.com/albums/f134/aniban12...
http://i46.photobucket.com/albums/f134/aniban12...
http://i46.photobucket.com/albums/f134/aniban12...

Side Note: I'm using Vista. Does that make a change? :D

I ınstalled this script, and settings all options, for my server, but when click test on options page on ikariam, active button not appear.