Entourage Email Folders Etc.recovery On Apple G4 Running Osx10.3


someone used my mother's G4 yesterday - just to bring in their own email.. they opened Safari and then went to an http address to get their access their own email exchange program.

when my mother went back to her computer opened up Entourage - ALL HER EMAIL Had disappeared.. AND SHE could not get it back.. Entourage asked her to start again as if she had not done it before..

she is completely desperate -- we tried to search for her folders etc. but to no avail...

What are the steps for her to do to recover her Entourage mail folders etc.. ?
thanks for letting me know as soon as you possibly can.