For heaven's sake! We have no evidence of mammary glands in any fossils. We therefore cannot say that all species which had those bones had mammary glands or the opposite that all species which had mammary glands had those bones. Further, you cannot give proof of such a transition without knowing that these species you say were mammals did indeed have mammary glands.
In addition to all the above you are advancing the ridiculous notion that random mutations occur simultaneously in totally unrelated parts of a species. If changes have indeed occurred simultaneously in totally unrelated parts of a species, they would be proof of creation not evolution.
The therapsid-to-mammal series goes from identifiably reptilian creatures to identifiably mammalian ones. The rest of your obviously unpreviewed screech I'll pass without comment.
For the lurkers, what gore is wishing away is this sequence:
The top two are early fossil mammals. The ones below are increasingly old therapsid reptiles, the line that gave rise to mammals. As you scan up, the multi-part jaw bone typical of modern reptiles drifts apart and becomes the hammer-anvil-stirrup ear bones which are diagnostic of mammals.
The figure is from The Fossil Record: Evolution or "Scientific Creation" by Clifford A. Cuffey.
In fact, you so seldom see a creationist say "Ooops!" at all. And yet, they're far from infallible. (About as far as it gets, IMHO.)