This login screen depicts the entrance to the Citadel of Anguish. Also included is an EULA screen with only an Accept button.
To install, extract the zip file into your EverQuest\UIFiles\Default directory. In the EverQuest folder, edit your eqlsPlayerData.ini file and change the line that reads "XMLFilename=EQLSUI.xml" to "XMLFilename=EQLSUI_EQ.xml".