How can i make my own logons Screens
Try visiting Theme XP. Some good tutorials to be found there.
Also, check out The Tech Guide.
Step 1: Download Logon Studio
Step 2: Visit Logons Studio Skins database
Step 3: edit one of the skins that you downloaded, the skin is in C:\Program Files\WinCustomize\LogonStudio\ <name of skin>
Step 4 : enjoy
a good link for logons and more is