How do i gain access?for heavens sake it sais only drow have acces and i got Viconia!very confusing...

when you is in the underdark a silver dragon will ask for u help, after helping her she will turn u party into drow

Anyway, viconia is an outcast, hated by her own race for not supporting Lolth.

Go to the Snib.... something village in the northwest corner of the underdark, then let the story unfold itself, in case you've been there the next waypoint is a lair in the nothwest corner of the underdark.