How to Install:
Go to your crossfire folder, then to "rez", then to "UI" and paste the extracted "UI_Login" folder into it (replace the old one).
C:\Program Files\Z8Games\CrossFire\rez\UI\
Else if you have windows 7 64bit
try this:
C:\Program Files (x86)\Z8Games\CrossFire\rez\UI\UI_Login