Someone else mentioned this i think, I agree its kinda lame they dick you over on the money for killing stuff after lvl 50. I've made it to 60, but couldnt get past it.
The bosses arent too bad, first one just kill. second, get break and shatter bolts, stun him when he uses dark omen. third, whittle him down to a little over 991000 health, he will use a giant heal, put subversion on him before he does and he'll kill himself. fourth was hard, use disruption whenever he has 100 mana or he will insta kill one of you, other than that just beat on him and hope you get lucky. Did it all without the inventory hack.
Also, kill paladin a lot until you get a whole set of his armor/weapon for veradux