When you download a logon you choose to open it or save it - if you open it it goes right into logon studio , if you save it you choose a folder to put it in - once there click on it to load it in logon studio - once its in logon studio double click on it and it will be set as your logon

......Note : while in logon studio you can import any picture saved in your computer to be a logon in your studio - have fun !

P.S. if you been saving them but dont know where - just save another one but this time before you save it follow the link to see where its going chances are the other ones you saved will be there too ....lol ....