I am with MikeNV. It seems like Zillow has changed up their site a bit, but nothing drastic to the point where you cannot type in your address and get the zillow value, but this is not the same as a real appraisal value, so please be careful when you run around talking about Zillow said my house is worth so many thousands of dollars, when the reality might be something totally different.
Zillow simply shows you how much houses around yours has sold for, but doesn't take into consideration the condition of the property, which is hard to do without examining the house.
I know my home looks like crap on the outside, but the inside is totally remodeled. We ran out of money and have not had a chance to do the exterior, but the interior is great!
Hope this helps!