Render problems!

I'm still a little bit new with working with after effects, but now I have a big problem, and a deadline on the 12/6 so I hope somebody can help me!

I've made like a small animated movie of a picture in AE (it just zooms in and out). But when I want to 'make movie' of it I doesn't comes out the way I want it.
The picture exist out of pixels. But, when I want to render it, AE makes it kind of blurry so that you cannot see the pixels annymore (like it want's to make the quality better, but I don't want that, I just want plain pixels!). And seeing the pixels is essentiel! Anybody know how I can do this? I tried a lot (also by rendering it in draft). And I worked on this project before and then it worked out, but now when I do the same (resolution:full, all render settings off, quality draft) it doesn't comes out in the same way...

Help!