First of all, calm down. Rage or panic is never helpful at all.
Look at the eggs. Any that have dried goo on the outside have oozed, and are bad. Remove them. That's what it sounds like you have on the ones with a pinmark bubble of something dried up. Get rid of those. If you open one, do it outside. Preferably inside a plastic bag.
Once the stinky eggs are gone, the smell should fade quickly. If it doesn't, there are more bad ones, OR there's stinky goo in the bator that oozed from the bad ones.
You can't see a bullseye when you candle. That's what you look for on the yolk of an opened fresh egg, to see if you have fertile eggs at all. That's not something you'd want to do with purchased, expensive, shipped eggs. You can't see a fertile dot when you candle.
After you remove the stinkers, wait until day 10. Candle again. If they are developing correctly, you should be able to see veining and maybe even see the little dark embryo moving around. get a really bright little flashlight, like a mini maglight or a 9 LED flashlight, put in fresh batteries, and in a darkened room, wrap one hand around the end of the flashlight, so that you can place the egg against the circle of your hand. do this by placing the upright egg, small end down, against my hand. Then, keeping the egg upright, I move my hand around to shine the light down through the big end. That's where you should see veining and movement.
If you aren't sure, and they aren't oozing or smelling bad, leave them in. They'll hatch or they won't. If you have rotting eggs at day 8, they were either old when they were shipped, or got left out in the heat a long time while shipping. This time of year, it's hard to say for sure that they were old. I probably would not buy from that person again, though.
