Hi, playing Diver Down and enjoying it... alot.

1. I have just started act 2 and gone to the outpost, talked around, heard all the stuff about a knight with similair armour and stuff, and talked to that guild thing, and they want me to go to the mines north and fetch an amber something or other (names slipped my mind). Anyways, when I get to the mine, it says there is some stuff covering the door, i have no idea how to remove it or get around it. Help please! Am I even doing the right thing here, or should I be doing something with that red tower I can't get in?

2. Does Gerrent (That red and white knight whose name I may have misspelt) ever leave your party, like that first guy did? And if he does, how near to the end/far from where I am up to is it?

Thanks in advance.