Open a terminal, insert a floppy disk with some files on it and issue the command
Code:
hwinfo --floppy
This will give you information about the mount device name of you floppy disk drive. In my case I use a USB floppy disk drive connected to an old HP Omnibook and get the device name /dev/sdb.

Then open a PCMan file manager. Do not select My computer from the menu, but click on the proper device in the left pane of the file manager. In my case I have to click on sdb.

Before you remove the floppy disk right click on the device in the left pane of the file manager and unmount the disk.

I hope that helps.