this method no longer work, Updated with sharecash downloader
I will show some tutorial, How to download from Sharecash.org, hope this will work.
first for download some file from sharecash you must complete one offer.
If you use Firefox disable your Adblock plus addon because Adblock will block the offer and you can't see the offer
Fill the offer with fake name and fake email, for some offer require an activation so you can use temporary email service like mailinator, 10 minutes mails and lot more
after complete the offer then you can download the file
hope this helpful