buggy mage guild quest?

I've taken the one where you have to put someone to sleep 3 or 4 times. 
The person has never been there. The first time, I thought it might be 
because I didn't have the bought sleep spell when I took the quest - I 
bought it after clicking yes. But after that I made sure I already had 
it, but still nothing. Anyone else experienced this?

Another question is on picking quests. If you turn a quest down, does it 
lower your rep? I remember reading a FAQ about it once that said save 
before taking quests so you can reload if you take a hit, but I can't 
remember if it said to reload til you get a good quest, or just if you 
take one and fail, and I haven't had any luck finding a FAQ that covers 
that again.

And I just remembered Nyctolops suggestion about searching google groups 
about the custom classes, so I'll take a stab at sifting through that 
again now.