Ok this is never going to get done by any one but you....I am sorry but it is the truth. However, I can help you devise a plan and escape route for this disaster.

You may want to get: garbage bags, liquid Vim cleaner, a cloth, a rough spounge, plug in scent thingys are opstional if you dont mind smelling the horrid fridge, a bucket for soapy water, music to help pass the time, and paper towls.

1) Get something to cover the smell while you are cleaning, doctors mask, and alot of those plugin scent things.

2) Get a garbage bag (more then one you don't want this to spill every where), and through away all the crap that is well crap.

3) All the dishes and cutler can soak in a sink of hot water and soap while you are clean, but change the water periodically

4) Now the hard part will be cleaning the inside, you will need to take anything that you can out of the fridge (racks, trays whatever).

5) Clean these, scrup them then soak them.

6) Use a rough spounge this will help take off all of the hard crust once you think it is all gone use a soapy cloth and scrub, then rinse and dry.

PS: were clothing that you are not afraid to get dirty and bleeched