From the dev:

ftpii is an FTP server for the Wii, giving people easy access to their SD cards without having to eject it from the Wii through there Computer.

You will need an FTP client in order to connect to your Wii.

Changes
0.0.14 Rebuilt with latest libfat CVS to fix delete corruption bug and speed up opening large files (thanks rodries!)
0.0.13 Async networking, cleaner exiting, data cxn timeout, power button, gc controller
0.0.12 boot.elf rebuilt with patched libfat to set archive flag on new files, allowing Data Management to see uploaded save games (e.g. TP hack).