The Windows XP installation doesn't include drivers for the BusLogic SCSI Controller, so you need to add this during the installation (using the F6 key). The floppy image is not bootable, but only contains the drivers required while installing XP from the CD/ISO. If you don't get the F6 option for adding drivers with the installation image you are using, you may try to create the VM with an IDE disk rather than a SCSI disk to see whether this works
André