Image tramsfer computer to embroidery machine

Hello, New to the embroidery world and I have many questions. I have designed a pattern on the computer using Forte software and I am running a Pantogram GS 1501 embroidery machine. I cannot get it to lead on to a flash drive. It has usb connection also. How can I send the pattern over to the embroidery machine to be embroidered? Looking at the software window and pattern, I don not know what icon or key to transfer the image. Any help woild be geatly appreciated. Thanks