Also, the battery cover (that you take off at the beginning) and the SD card cover need to be ON and CLOSED, otherwise the camera will not power up. I was trying to test it to make sure it powered on before I put all the screws on, but left that out, so it wouldn't power on! Good ol' Dad says to me: "Should you put the battery case on?"
Saved me from a big headache! Repaired a very very broken screen for only $30. I thought that the camera was toast!
On step 5, there is a screw in the bottom left that you haven't shown in the photo.
On step 6, there are 2 ribbons that you have to take out. The 1st ribbon on the RIGHT just pulls out of its white connector.
The 2nd ribbon on the LEFT is a bit trickier, but not hard. There is a grey slot that is locking the larger ribbon in place. You need to pry that grey slot/level open so that you can take out the ribbon. Important detail!
There also should be instructions regarding how to replace the screen. For example, if you have just an LCD (and not a backlight to go with it), then you need to remove the LCD from the backlight.
If your order came with a backlight, then you need to take the little silver case that all the screws screw into, and remove it from the backlight, and install it onto your new LCD/Backlight. Should have pictures for that.