ok the .item says:
ITEM_name=" deblet-in-a-file on mmcblk1p1"
ITEM_ID=" deblet-file-mmcblk1p1"
item_device="mmcblk1p1"
item_modules="mbcache jbd ext3"
item_fstype="vfat"
item_fsoptions="rw,noauto,nodev,nosuid,utf8,uid=29 999"
item_linuxrec="deblet.img.linuxrc"

the files on my sd-card are:
busybox_mount
deblet.img
deblet.img.linuxrc