I downloaded various logon screens from the thingy except none of them work. I extract them from the zip folder then run the .exe file. Except when I run it, nothing happens. I look carefully at the processes and when I launch the .exe file it goes on the processes list then disappears in like 1 sec =[ dunno wots rong wit it though o.O thx for any advice xD (thats me praying for help)

You don't run the .exe for logons directly. You need a program to change your logon screen to the one you downloaded. I recommend LogonLoader, but LogonStudio from StarDock works well too.