AmigaForever is able to read ADF files, but you didn't give them to AmigaForever but to the emulated Amiga. This does not work. ADF files are not executable files, they are images of floppy disks. As such you have to insert them into the emulated floppy drives. Press F12, go to the floppies page and insert the ADF into one of the available drives. Then click on Reset in order to boot from the floppy disk.
Bye,
Thomas
