if it is going to be washed you have to stitch your appliques down just like any fused applique. i tend to be 'lazy' about some stuff and at times will wait and stitch them down and quilt at the same time instead of stitching them all down then quilting... but they do need to be stitched unless it is just a wall hanging that will not be washed (unless of course you know about a permenent fusable that does not require any sewing???) i think i would still be apt to stitch; i hate my quilts coming apart :)