about extracting grub2 files from mbr

[address@hidden]

Hi all,
I don't know if I'm asking in the right ML, but I hope so :) I'd like to know 
if there's a way
to extract what's in the mbr knowing that there is grub2 installed on it.
Let me explain this in a bettter way: we have adopted in our company a 
Symantec software called
PGP Desktop to manage disk encryption, which installs a modified grub2 boot 
loader to let
authorized users to boot the OS. I'm not familiar with bootloaders and how 
they are installed so...
first thing I wanted to be sure is if the mbr is encrypted (I really doubt it) 
and if there's a way to extract
everything it is inside to see if it stores the PGP key somewhere in it. Yeah 
I know my question
seems like "hey, help me hack this one" but I'm just concerned about my 
computers security,
and since its bootloader is based on grub2 maybe you can/want help me, if not 
no problem.

Thanks a lot.

David