Stuck on Tomb Raider Legend

[Energize]

Im on that boss part where you have to fight that wierd black monster thing and amanda is in the control room, but I cant work out how to get the sword, I pull all the levers then blast those metal things so there is a wall of electric around me but I cant get the sword. I jump on top of that machine but she wont grab it.

 

[Energize]

spoiler:-
You use your clawline to get the sword when the sheild is down

Lol I feel so stupid Were you supposed to kill that monster because I didnt?

Now Im stuck in that bit where the real king aurthurs knights tomb is at, what are you supposed to do when you get out of the tomb bit and into the big area with water and those 4 cages?

 

[Energize]

Ok im now on the himiliays (whatever) level and im at the big room with the platform with the fragile door at the other end, but whatever I do I cant seem to break it.