I have been trying to get started on Amazon by merch! im not sure if its my computer or if im doing it wrong or what but when i download all the stuff i need to get started it wont let me access it? im really confused? Ive downloaded everything that is available hoping that it can help me maybe im not to sure. Everytime I am trying to open it to start on a shirt design it just says for me to open it and then it just re-downloads again?