Hi lynnmarie0123 and welcome to the Q&A Forum!
Yes, you can put images back on a memory card. If you haven't changed the file names, it will be easier than if you edited them. We explain how to do it here:
http://www.digicamhelp.com/accessories/memory-cards/dcim.phpYour camera should have a cable that connects to the computer, so you may not need a memory card read. When connected, you can transfer the images from the computer back to the card.
I don't understand why yours is not working. Have you installed the ZoomBrower software and driver? I suggest you transfer the images to your PC first, rather than try to transfer them from a CD to a memory card. Then remove the CD after the transfer.
But just in case, here is some information about memory card readers:
http://www.digicamhelp.com/accessories/memory-cards/memory-card-reader.phpIf your memory card is Secure Digital High-Capacity, make sure the reader is compatible.
http://www.digicamhelp.com/accessories/memory-cards/sdhc.phpYou stated you are a newbie and some of the information above it a lot to digest, so please let us know if you have additional questions.
btw, if none of this works, why not print them out and show your mom. Many places such as Walmart and Target have photo kiosks. You can insert a memory card, view and edit the photos, and print them out by yourself, all within minutes.