The very reason why Linux can be such a pain in the ass, as far as permissions go is the very reason it is so very secure. It is not a good idea to give youself (user) permissions to the root directory because every time you give users more permissions to anything outside of your /home directory, you also make it easier for a would be hacker to gain control of your computer.
All you need to go anywhere in Linux is root's password. To gain access to your root directory, open a terminal and "become root" by typing:
su [enter]
It will then ask for root's password. Type it in and press enter.
You will notice the $ sign is now a # sign. This means you are now "root" and can destroy the solar system.

Now you can enter your /root directory by either the command line or by a file browser.
From the command line go:
cd /root [enter]
and you're there! To see what's in there type:
ls [enter]
Or with a file browser, either Nautilus or konqueror, just type either
nautilus [enter]
or:
konqueror [enter]
and you'll be in the file browser as root. Then make your way to /root.
Mandrake has a utility in the Mandrake Control Center which will allow you to re-configure Lilo. Find it, and tell it to boot to Windows before Linux.