Would it possible for a successful delivery to occur if an embryo of a feline was implanted inside a woman?

Hmm, no. The fetus is essentially a parasite of the mother, the immune response to the foreign body would be be immediate.

Cats and humans are just too dissimilar, this is the sort of thing you could maybe to with a lion and a tiger or a horse donkey, animals like that. These animals are genetically similar, they can even hybridise.

No, it would be impossible. We are both mammals, but we're not similar. The humans immune system would recognize the feline's cell as different and would destroy the embryo. This can happen even when the embryo is human. I think the experiments that were being done, were on incredibly similar birds and "lower", less complex species. Our immune system is too refines and too complex to allow it.

the chromozones won't match up, the human body wouldn't even recognize it as important, it would just chuck the weird cells out

I would imagine the relationship is far too distant, and volunteers would be hard to find.

ouch ...plz let thm b @ least declawed :)