Get this kit:
and read all the code and blueprint through and learn the idea behind the PHP/SQL etc. code used. Then you have a fine idea what it begins with and how much more work is needed.
MMO is not a impossible dream for skilled and hardworking people. The problem is more how big the zones(worlds/levels etc.) are and how much contents you wish. MMO games like WOW and LOTRO have HUGE amount of contents and as such use a big pile of level designers, 3D artists and game play scripters. That is the big problem. You are only one person…