The main advantages over Yahelite..
1.Voice Chat.
2.Full graphical images (over 100 of them)
3.Easier to use
4.Cheeta Chat Avatar Support (View Cheeta Avs)
5 Identitars (Little Images like Avs next to your ID for personality)
6.The Filters Are more Advanced, the filters actually learn
7.Profile Picture Retriever, This allows you to get everyones
8.pofile image and save it to disk.
9.More frequently updated.
Plus other features which would just be too long to go into here... but there's a list of the main things...
http://chat-help.co.uk/~ymlite/ymliteinfo.txt