I couldn't make head nor tail of your last post.
The whole point of the post, as I suspect you haven't got to grips with, is if persons A & B happen to send person C different files but with the same filename then C has to alter at least 1 of the filenames assuming they are to be stored in the same folder.
Is that a crime?
Was Eclipse Home Option 1 & VM 2Mb
Now O2 standard