I have 2 brothers but I don't hook them to a computer. I have the PED basic which transfers designs to my sewing machine by a little card that fits in the side of the machine. I'm not familiar with the machines that hook directly to the computer by the USB cord. Does your machine have a slot of the right side where a card fits? Have you just tried to do the designs that are in the machine...I'll try and research the 1500 to see if I can be of more help....I would imagine you would have to have designs stored in your computer either way????