File exists but not in directory

I keep getting this error when I try to close my Picturetrail Editor.

How can I put the file back in the directory so I don't get this message again? Thanks!

 

No psychic's here. What error?? Machine Specs and the version of Vista your running would also be helpful.

 

Computer specs are in an attachment and I use Windows Vista. The error is the title of my post.