There is two ways to obtain a new password if you forget or lose the original.
A)You can get a new one sent to the email address used to create the account here.
B)I can manually edit it if you have filled out the "secret question" and "secret answer" when you registered or you can edit or add one in the control panel.
If your email address has changed since you registered you can can edit that here.
If you cannot login for any reason you can always use the "Contact admin" link on the bottom of each page. I'll help you all I can to resolve issues but as far as the passwords go those are the only two ways it can be changed.