Step 8: Piston Assembly: Push the pistons with solid equal force (can't stress this enough) into caliper until the dust boot is close enough to the retaining clip area to seat properly. You will exhibit some resistance when the piston meets the inner seals. (you do NOT need to push the pistons completely into the caliper housing so that it bottoms out)
Step 9: Clips: Install the new dust cover clips by laying one side of the opened end of the clip onto the boot, hold it with your fingers (or have an assistant hold it for you), then work the remainder of the clip around the caliper lip to seat it properly and if you do it at the correct angle you can let go of the end and it should snap and seat itself onto the lip of the caliper, verify that the entire clip is seated properly and not pinching the rubber boot in any spot.
Step 10: Final Inspection: Wipe off any grease/brake fluid/etc. and your calipers should look like so if you successfully followed all the above steps:
Fell free to hit me up with specific questions, this was just an outline, and I do have many more pics if you want to see them.