1. Where's Viconia? I'm on Ch. 6 and I'm assuming I won't find her for the rest of the game. On the off chance that I'm going to replay the game (great game, but I don't have the time!), I'd like to play with the NPCs I skipped or missed out on. I looked around the city and I'm guessing I missed the obvious.

2. I'm not exactly sure what I need to do on the Eyeless Quest after meeting Gaal. He said go to the lower dungeon, but I didn't find an entrance in the Eyeless Cult area or in the Sewers (unless it's that hidden door that's locked but I can't open). I stumbled in on the lich but apparently that wasn't it. So what do I have to do?

Karl

Viconia can be found in the Government District surrounded by a bunch of people that have tied her to a stake. Save her from that fate and you got her if you want her in your party. There are several entrances to the sewers outside in the Temple District (look for the lids). Hope that helps!

Talk to the former priests by the Liches tomb. They want the Big Eye dead too. But the way down is left of the tomb. Its a passage, you should be able to see it...., but anyway play it again its fun

South from the lich room there is a door that leads to stairs. There you should go.
About this locked door, you must have the key you find in Tazok´s corpse to open it.