Catastrophix the kitten is alive and well, although somewhat fishy-smelling (we've been feeding her solid kitten food). She still hasn't figured out the litter box or the water dish, but she makes up for it with quite an appetite.
Some confusion about her age. I'll go with the vet's guess placing her at around a month old. My sister contends that she's far younger. At any rate, Catastrophix can walk around (albeit unsteadily), purr (quite delightfully), and snuggle (rather contentedly).
It's been hard to type with one hand, but it's worth it for that little furball.