Ironbar: DON'T give up. The game is difficult to get used to, and Irenicus's Dungeon is a genuine pain in the ass. (Hey, it's a dungeon, OK? He's not exactly interested in keeping his guests
comfortable.) Here are some of the most important things to know about combat:
LOW numbers are GOOD! This is of extreme importantance, because the 3 things that determine your odds of survival (Armor Class, THAC0, and Saving Throws) all get
better as they get
lower. This is counterintuitive, I know. It's not my fault, I didn't design D&D 2nd Edition Rules, but I'll apologize for it anyway.
Get a Tank. A Tank is some burly, heavily-armored fellow you can use to stick in your opponent's collective face while the rest of your party maintains a safe distance. Minsc and Jaheira both make decent Tanks, although there are some better ones out there. Sending a Mage up into the thick of combat, however, is usually not a teriffically bright thing to do.
If anybody dies, Reload.
Don't cast Wizard spells (those used by Mages, Sorcerers, and Bards) outdoors in Athkatla--it's illegal. Cast your pre-battle spells while you're still inside, and take the fight into the nearest building if you have to.
Take the link in my sig for more info.....a LOT more info.