Su

I think this is just a dumb syntax issue. There are a couple of spots where the opening PHP tag is in short form, and if your installation is set up to disallow it, execution fails.

You’ll find them at these lines:

• 814
• 473 (way over around char 1062 of the line)

At those two locations, just change the <? to <?php and the settings screen should load. Note: I’m only just starting to review the plugin, so no idea if something else is actually broken.

Still seeing this under Ampps, running PHP 5.3.8 and WordPress 3.3.1
Whatever it is, it isn’t new. I’ve dug up older versions, and the problem exists as far back as the last version of this plugin as ImageTagger.