how do you go to this folder, sorry man m not that good so bare with me. i cant find this folder. plzzzzzzz help

Hey man can you help me telling the location from where you downloaded the (iPhone1,2_3.0_7A341_restore.ipsw) file. It will be a great help i could not find it any where. copy the URL of the site from where you downloaded or the torrent file. thanks looking forward to your reply.