@HAMID SALEH LAK, brother you can ask me any details regarding freelancing. I would love to guide you. You can use this forum for any questions so other members can share there experiences too. But any website who demands for registration fee is totally fake and fraud.
vworker.com
freelancer.com
These are the best websites up to my knowledge. No registration fee at all. Just make your account online. bids to project, after winning the project complete it and get payment (There is some fixed commission for website when you get payment usually 15% in most of the cases.)

Best of LUCK!

Regards
Shan