SAIYANPLANET'S PROFILE

Ok, I use RPG Maker 2003, I've got a fully constructed game, but I want to add the following features;

Online Mode For Multiplayer, I'll pay for a server to host it on, but I want to know if it's possible to allow others to connect to have multiple people playing together

I want to add options to battle eachother, trade others, and talk to others.

Is this possible? I've heard it's possible on RPG VX ACE but not 2003, if that's true, I'll get VX but only if my 2003 game will load through VX so I don't need to reconstruct the entire game.. is this possible?