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John,
All that information is stored in your database, not in any files. If you or you hosting provider did not keep a backup of your database, the data is lost.
If you or your hosting provider have a backup of your database, you can restore that information through phpMyAdmin or a similar tool.
HTH.
James
Insanity can be defined as "doing the same thing over and over and expecting different results."
Stupidity is not a crime. Therefore, you are free to go.