Hi,
First, you are in the wrong forum. I know you've been posting a while and should know better.
Be very careful with this quest. It is easy to mess it up. Get the facts at the Wiki http://fallout.wikia.com/wiki/I_Put_a_Spell_on_You
Answering questions like this in the General Discussion forum can bring a warning. We'll ask a Mod to move this.
Ok, how is this a cheat, hint, or spoiler? I tried to make my post as un-revealing as possible.
And as for the quest, this is annoying. Ah well, this is the "Cheats, Hints, and Spoilers" forum now, so details be damned. I went outside and was confronted immediately upon exiting the building, and failed the speech check and had to tell him I was investigating the tower. Once inside, I eavesdropped until I completed the objective. I then went to the monorail and could not enter it, only ride it. I rode it round trip, went back to the tower, killed Curtis, looted his corpse for everything, went back to the Monorail, still couldn't get inside, talked to Hsu, ran to the monorail, (which didn't blow up for some reason) defused the bomb, and now can't talk to Hsu.
I appreciate the help, but my instance doesn't seem to be covered in the wiki.
Geesh this quest is messed up.