It is so nice to see the system supports versions.
I did the following testing:
1. submit a file a1.txt with the subject "s1"
2. add a new version a2.txt with the subject "s2"
3. then I deleted the the version 2
I noticed that the file is displayed using the name "s2" and version number is 2.0 even the second version is deleted. When I clicked on the menu "Open File in New Window", it displays an empty window.
I am not sure this is the right behavior or not. Do you think the current version of the file should be 1.0 instead of 2.0?