This is how you download MattMS:
Step 1 : go to desktop (right click on the desktop) create a new folder and name it (MattMS or something simple like that )
Step 2 : download maplestory v83
Link here : ( http://www.shacknews.com/file/16497/maplestory-free-client-v83 )
Step 3 : extract the maplestory v83 into your previously made folder
Step 4 : download MattMS client
Link here : http://www.mediafire.com/?ibe2lf23c5aekmu
Step 5 : Register
Step 6 : Log in and play
Any more questions please come to chatbox : xat.com/mattms and ask any staff member on the chatbox