I failed to retrieve my lost image files during system restore, will the use of recovery software works?

therese asked: Just found out that one of our computer’s user account was lost.
I tried system restore but it only restore the lost acct without the data. It used to have image files, will it be recovered using the recovery software available?
advance thanks!

Does using the recovery software for the memory stick of a digicam render it useless?Or can it be reused?

sanyo asked: ie after recovering my lost data n pictures,can I start afresh using the same memory stick or do i need to buy a new one.