reviving allies in planescape: torment

[Milo]

just got this and so far I am enjoying it, but I can't seem to figure out how to revive fallen party members. Although the nameless one can't die, old morte has bit the dust and I see no way to get him back...

 

[Sander]

...
So? Go play the game more, you'll encounter ways to get them back. Expensive ways, or if you play attentively, a very cheap way. I'm not going to say anything more, because it's as much a part of the game to find this as anything else.

Walkthroughs are everywhere on the net, so I'd suggest looking there.