Click on your Everquest folder while EQ is not running.
Hit and hold the Ctrl key. Click C while holding that key. This copies the folder.
Release buttons.
Hit and hold the Ctrl key. Click V while holding that key. This PASTES the folder. This is the step you didn't do when you copied last time.
Release buttons.
Rename folder from "Copy of Everquest" to "Eqemu".
This can also be done by RIGHT clicking the Everquest folder, selecting copy, and then right clicking in the white space somewhere near the Everquest folder and clicking paste.
No programs or files can be in use while you are copying them. Close any notepad files you were looking at prior to copying.
Don't feel stupid that you needed help.

Everyone needs help the first time they do something.