Do you know what a skunk smells like? That's exactly what skunked beer smells and tastes like. But unless you're beer is about 5-6 weeks old from brew day, it's still green. While I'm not sure about the smelly foot odor, chances are most of what you're experiencing are just a byproduct of the beer not being ready yet.
While leaving the beer near a window that gets a little sun isn't the ideal spot, if they were in brown bottles and you took care of the situation relatively quickly, I'd bet the damage from the light is minimal if there's any at all.
EDIT: I just realized you're down under and I'm not sure if they have skunks down there. If not, then you may not have ever smelled a skunk before. Either way, it's extremely unpleasant. Hard to describe, but it's a combination of a musky burnt rubber burning the hair off your nose repulsive smell.