dungeon siege 2 help!..

[bakrus]

.... well it`s not actually a problem ,just to get your attention. but i wonder if there is anybody who can help me with a couple of questions of mine....,

well in the lost vault of the azunites, there is a secret with a ghost guarding a treasure,, but i can`t talk with these yet ... so how far into the game i can venture before i can`t go back to finish these quests and secrets... ? i`m

..and does anyone have some tips about the game that i should be aware of?

and one last question.. about NWN hordes of the underdark.. i`m in hell and have just got that hand which we could throw to an objekt en then get tossed over to that area..( sorry forgot the names.. haven`t played for a while and i don`t have the game with me right now..) .. but at this place there is two ways to go but i can`t pass them.. cause if i go straight forward i`ll get burned and killed by a wall of fire..., can`t run through it, can`t use that "useful" hand, and neither magic.. and if i use the hand to jump to a little "island" to the right from the entrance.. then i can`t get further.. but i do see some chains hangin` down from the cave/hell/ roof ( whatever.).. but i can`t reach them...
i`m sorry if my explanation of my Q`s doesn`t help you understand what i mean ... but if you don`t , i could just ask again with more details in a few days... i hope this wasn`t irritating..

thanks=)

[Thoran]

Just note the position of the ghosts so you can go back to them later in the game once you can talk to them.