How do I hide global links such as the links in the dropdown for guests? Not wanting a plugin to hide links in posts/topics etc just general/global links.
Then go to the inc folder, then the actual php plugin file, and open it up. Scroll down until you see Compatibility "14" and change the 14 to 16. Then save it, go to your admin cp, and activate the plugin. Let me know if you need any help getting it activated and all that.
The above is for links in posts/topics.
If you are talking about the links at the top of your forum you would need to edit the header templates for guests, member, admin, etc. It would be pretty hard to do that, but not impossible.