Diablo 2 Expansion Set Help

i have killed diablo. the game just ends there. no portal opens up for me to follow baal. where does the portal open and why does the game end after diablos death even though i am playing the expansion set.:confused:

I just had to convert my character to an expansion character.

by the way. is it possible for a person who has started a thread here to delete it ??:wink: