There is a newer, and in my opinion much better, video guide to inserting Medtronic's Enlite glucose sensor available on YouTube from Medtronic Diabetes ANZ. This version not only describes the basic insertion steps but also talks about things to not do and describes some ways in which things can go wrong during the insertion process.
If you are interested, please follow the link below to my post in the Continuous Glucose Monitoring Forum.
Newer, better Enlite insertion tutorial videos from Medtronic Diabetes ANZ
-irrational john
T1 LADA since ~1978; first pump: Minimed 507 ~1997, currently using Minimed 723 + CGM