Before you root, you should probably upgrade to 2.01, as that will ‘break’ your new root access. You can get that download from here, if you have not already received it OTA (Over the Air). You need to follow the directions below, to apply the 2.01. The directions for each download it exactly the same, except for the ADB access.
This ‘root’ is strictly for developers. It’s not going to give you any ability to do anything to your phone yet, unless you really know your *nix commands well enough not to screw something up on your phone. So continue only if you really want this ability (the ability to really screw up your phone).