When I browsing with "MadCommander" I detected order of directories and files is wrong when I'm using "Name" column order. I checked and I detected it's based on simple ordering by name (without paying attention to upper or lowere case neither its type, directory or file).
I solved by using "google-collections 1.0" with a double comparator (by type and by name).
Also I fixed wrong order when ordering by "Size" column.
I've create theese files:
And now this file isn't in use: