Thread:Extension talk:FontAwesome/Just displaying blank boxes?

Hello, apologies for posting here and not the forum link provided below, but when I tried to register for an account there I got a PHP error.

I installed the extension and it only displays blank boxes. I am using MW 1.22 and the Vector skin. I followed the installation instructions exactly, including adding the line to Vector.php. I installed it to extensions/FontAwesome and everything. (Within the FontAwesome folder, the archive automatically put FontAwesome.php and FontAwesome.i18n.php, then another folder called font-awesome. If this should not be the case, please let me know.)

The extension appears to work otherwise: I can use things like fa-border and the border shows up, or fa-3x to make the blank box bigger. It's just that all the icons are blank boxes.

I am using the syntax "fa fa-ICONNAME" for the class, so it's not that I'm leaving out the "fa" either. What should I do? Thank you for any help!