Enter in the user name of the person you want to view the skin for. As you type you will notice the picture box update. Once you get the skin that you want you can click save skin. The skin will be saved in the same directory that Minecraft Skin Grabber resides in.
Well with this little update I added in meters for CPU useage and ram useage ( though in the picture the ram useage is off)
Also moved the PC information to a tab instead of a new window. With that said on that tab for people with more then 1GB(1024mb) of ram, it will display it in GB’s instead, while if you fall under that amount you will just see mb