Hi! — Ryuukoko
Get DropBox:
https://www.dropbox.com/
install it, and then drag and drop the file you want to upload to the dropbox folder.
After the file is uploaded you will see a little green checkmark on the icon.
Right click on the icon and select "Share DropBox link"
Now on your store page do an upload from URL rather then UPload from your desktop.
You link will look like this:
ww.dropbox.com/s/NiceTryTrolls/2sdff0z4c0jpfv0f/RPG%20Dice.zip?dl=0
Change the <img src="{SMILIES_PATH}/icon_e_confused.gif" alt=":?" title="Confused">dl=0 part to a ?dl=1
That will alow remote downloads, now click the upload button. You should see some success screen IIRC.