I don't want to be a downer, but you really need to work on your password management especially in the Bitcoin space.
I remember I had the same problem a few months ago. I got error saying the passoword was incorrect while I was sure it was correct. There have been similar reports by other users in the past months too.
Even if he had forgotten the password, it should be possible to reset the password.
Back in early September, there were problems with the password reset option on the Freebitcoin site, and some users were unable to do it because of the error “this link is incorrect or has expired.” However, it's worth noting that the Freebitcoin team fixed it, and now the password reset option works correctly, although the emails come with a delay.