Laptop broke need help ASAP

I had a macbook with mixvibes Cross DJ which I got with my U-Mix. I then upgraded to Cross.download version. My laptop broke and I had to buy a new one. I don't have the disk anymore for Cross DJ but I have the 24 month download warranty for Cross upgrade. Will I have to buy Cross DJ again or can I still download my Cross upgrade without having Cross DJ on my laptop. I still have the serial for my Cross DJ in my email but I bought the disk not the download. Both softwares bought with two different emails