Go to the password reminder page and enter your username and your e-mail address that you provided at registration. Now you need to be verified via "Captcha" (just check the empty checkbox in the "Captcha" section). We will send you an e-mail with a temporary password which you can use to sign in. After that, you have to change your password again.
Click here to go back to beginner's area and learn more about the basic functions.