Jamella's Diablo Hacking Prog. Plz Help ASAP

Im alitt bit new to hacking and am having trouble on Jamellas Diablo Program. Why cant i open my Battle.net Character. I can open my single player, but not Battle.net. Does it only work for single? And i heard that it works for " Open players" Whats the diffrence between open and closed battle.net player and how do i make them.
Thanks and Help ASAP would be REALLY nice