Hi Kylie,

Basically all you need do is ftp your extra images to the same folder as the original image (that you added when creating your product listing), using image names that contain the original image name.

For example:

If your original image name (in your product listing) was dress0123.jpg

you could ftp the following to the same directory that you saved dress0123.jpg in when you created your product listing

dress1023_1.jpg
dress0123_2.jpg
dress0123_3.jpg

and they would show up when you viewed the item in product info

This is exactly what Glenn showed you, if you still do not understand please reply with what part is troubling you and I will try to explain further...