Location: Cannock, West Midlands, United Kingdom Offline
if you hover your curser over exchange on the top bar a drop down menu will apear and "upload tracks" is the botton option on there. click on that and fill in all the details on the upload page and there you go
Location: California, USA Steam:sleaklight Offline
Or click the exchange menu button and at the top of the page there's a button that says "upload your tracks", click it and fill out the necessary information.