DaVinci

hi, im new to the imageburining and uploading it to a pc thing.. so herezz the deal.. i have an extern hard disk of about 500 GB with no partitions and i want to create an image of a desktop and a laptop; both are IBM there are no CDzz of anykind with the computers as the software iz already installed on a saperate and hidden parition on the HD.. how do i take an image and how do i upload it on a brandnew PC that i havent switched on?