We're often asked if we can provide a WordPress password for our users, unfortunately this is encrypted in the database and we don't have access to it.
The best place to start with a password reset is this page provided by WordPress themselves: http://codex.wordpress.org/Resetting_Your_Password
Unfortunately we're unable to support each and every script our customers may install, but we do offer Premium Support for supporting this kind of issue. Please contact support if you would like to use our Premium Support options.