As an administrator you can put this right by selecting the particular user in the “Parental Controls” panel which is in System Preferences/Accounts and clicking the “Configure” button of the “Finder & System” section.
You can then scroll down the list of applications and tick “Wordshark / Numbershark ” as appropriate and then click “OK”.
From OSX10.7, the option to “Always allow” was removed, so permission has to be granted EVERY time. This is a Mac feature which we are unable to work around. This is a slight downside to having “parental controls” active.