to restore your drive it copies over the partition and all the info associated with it , including wiping whatever info you may have changed since creating the image. all the programs so far discussed , give you the option to replace just a single partition with your image. of course you are going to lose your data. your existing data because your replacing it with your image of your old data.No it doesn't. I just made an image and if I were to restore that image to my big, new drive it'll wipe out the partition (and everything in it!) Big warnings saying DON'T DO THIS IF YOU HAVE DATA, etc....
if this doesn't make sense just return the computer to dell and get a game cube.
good luck