VimExplorer is a file manager, it can do a lot of file operations such as copy, delete, move, preview, search and so on. Also it has a variety of other capacities and customization abilities.
You can download VimExplorer from http://www.vim.org/scripts/script.php?script_id=1950
Then copy it to .vim/plugin
Start VimExplorer :VE
Then it will ask you for the starting directory, default is the current path
VimExplorer(directory):/home/username/