There's possibly a jack in the car. Those jacks are usually peices of shit, but they do work.
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It doesn't start...does the ignition switch do anything? When you turn it to the run position, does anything work, such as radio, wipers, heater fan? Do the lights still turn on? Any of the lights (headlights, corner lights, interior lights) should still work without the key on.
If the first things don't work with the key on, but the others (lights) still work, then it very well could be the ignition. If nothing works, either the battery is dead, disconnected, or there's a poor connection. I'd give more details here, but I don't have much time so if you could check out that stuff and give the results, we can go from there.
(I just glanced through the pictures, and the positive connector on your battery is clean, which is good. It appears to be tight, but I can't really tell; just try twisting the connector on the post: it shouldn't turn at all. Also check the negative post.)
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There's a huge crack in the drain pan...you mean the oilpan? That's not good at all. If you could get a pic of the crack, that would help. Also, being able to see the gasket isn't a problem as you should be able to see the edge of it. Now, if it's actually coming out of place, that's not good! A pic of that "problem" would be handy also.
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It's leaking antifreeze...don't know from where, just know that there's antifreeze dripping on the ground? Is it just dripping, or running out? Is it at one end of the engine, or a side? Is it from the radiator? If possible, pics would help.
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Don't worry about it being loud, for now...that's most likely the least of your worries. Does it just sound like a loud car, or does it "rattle", "bang", or "knock"?
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See what you can do to check these things out, and answer as best you can. I can't say I'll be back soon, but I'll be around.