Freezer dripping - old gasket

First let me say the part arrived much faster than I anticipated! I was able to use the box (cardboard) the part came in to cover the freezer while the door was being worked on. I did not remove the door, but did remove all the screws that held the door inner part that the gasket fits around. Like another person wrote, my insulation in the door was frozen. I took that out and put new insulation in. I then fit the gasket around it and then screwed it back on. I have an electric screw driver and without the bit, it fit these hex screws perfectly, so I was able to unscrew and screw quickly.

Unfortunately, I realized the cause for the dripping was due to a faulty defrost thermostat. I'm guessing that part will arrive tomorrow. We did need a new gasket, however, so I don't regret it.