Move From Folder To Root HTML Directory

I had originally installed Dolphin. Then, I fould Elgg and installed in an "elgg" directory off the root. Elgg is at least a million times better than Dolphin. But that's another story.

Anyway, I want to delete Dolphin form the root directory andthen move Elgg up the root directory. No moving the data or anything like that.

Can I just move and then change the suggested files in the duplicate installation tutorial?