ok well heres a rough indication of what I was going to do for the file location incase you encounter the problem again...
Some files can be hidden in Windows using attributes these files are not visable in Windows at all... what you need to do under these situations is boot into the command prompt and then navigating to the specific directory (folder).. when in this directory you type attrib *.* this will show you the details (attributes) of all files located in that directory or folder.
you will see files that have attributes in a format such as this :-

S H filename.exe

The S means its a system file and as such can not be deleted in Windows, while the H attribute means it is hidden... many viruses and trojans use these attributes to make removal harder.

to remove these attributes you would type the following

attrib -S -H filename.exe

when you now view the contents of this directory or folder the file will be visable and can be deleted with the command del filename.exe

obviously you have to have have some knowledge of DOS (Disk Operating System) commands to know how to negotiate through the file system using commands, but I thought It would be usefull to explain how these files hide from you while the Antivirus states they exist