weird, lets go through this step-by-step
you click on the attachment, before you save it, you rename it item.dat intead of item.dat.txt
you save it into <toribashfolder>/custom/haxu
you click yes to overwriting the previous file
you right click the item.dat and click properties, then tick the box next to read only
you click apply, then ok
you open toribash and have a black flame in your right hand
just do this all over again exactly as i have said