Okay, well havenīt seen the appliques, but the way to go would be to buy some Steam-a-seam2, lightweight. You will have to place them on the steam a seam and cut round it. then iron it on to the BACK of the piece. so place your applique wrong side down when drawing round it and then turn it over and PRESS it on. Just hold the iron on it for about 5 seconds.
Hope that helps. Good luck. Maybe that was as clear as mud.
Elle