The Heroes Round Table

I am currently playing TCC and everything is working except that there is no music.

Just wondering, did I miss downloading any files? How to get the music playing?

I entered the Tortuga Hall and one of the door is locked. Where is the key? Is it the key you get after defeating the Tortuga Guard outside? I manage to defeat the guard and get the key. The problem is I entered the hall and exit immediately, then the key is lost! So that means I can't complete this...