Upgrading WRT54GL to DD-WRT v24 sp1

Hi all, In a few minutes I will attemp to upgrade my brand new WRT54GL's frimware to DD-WRT v24 sp1. I am not sure how this will turn out. This is the first time I am trying to do anything with a firmware of any device. I was able to find numerous articles on how to do this, including this one from M & L Adventures. (How to Flash the WRT54GL with DD-WRT Firmware at M and L Adventures). I will update with pictues on how my upgrade went.