Quite a while ago I posted a written tute [no pics, sorry] about machine binding.
I sew the folded binding on the back. Then iron it so it is straight out from the quilt, turn it over and iron it again - you can use a very little bit of school glue to help hold it in place - then sew with a fancy stitch. The ironing is the trick as it helps keep everything straight.
Make a sample first so you know how wide to cut your binding so that it fits your quilt sandwich.