Um, if your mom wiped the computer
clean (formated the comp then... No offence to women, but I don't know of any moms capable of doing that yet.
) then you
shouldn't be seeing LW sharing files.
If she just run an antivirus scan, then the files
shouldn't have moved from the Shared folder.
Unless they weren't there in the first place...
Go to Tools->Options and click Saving. All completed donwloads are stored in the folder found in that adress in your HD.
Post back if what is specified there is the Shared folder.