i think a lot of the confusion in this case stems from the fact that these people are just not that bright/educated and are part of a certain kind of culture
i agree the inconsistencies with the GF's story are suspect, but i think some things--like the biomom's one word answers, the fact she has no idea where she heard certain facts, the fact her fiance is sending her fun myspace apps and has a page full of bikini-clad models while her child is missing--is more a reflection of the fact that these people are, well, just REALLY country, to put it mildly. i would take my myspace page down or at least make it private as soon as my family was the focus of an abducted child investigation. and i certainly wouldn't be talking about my "brats!!!"
and maybe the GF's story is actually consistent but she's not explaining it well because she's not very articulate. she does, after all, ask what the 911 operator means by "numerical" address
and crystal says on her myspace that she doesn't read because books give her "headackes."
not trying to be snotty here, really not, and certainly i hope and pray this poor little girl is found safe and sound, but i grew up around a LOT rednecks, and all the weird behavior here, a lot of it, can just be chalked up to the kind of culture these people are a part of.
i hope i don't get in trouble for saying this. but it's really different from the anthony case because it's a much different kind of family, IMO. not that the anthonys aren't really problematic, but i find reading into the things this family is saying and doing to be not all that productive, whereas reading into the caylee case seems to make a little more sense...i think the anthonys are capable of covering stuff up and plotting. not sure these people are. sometimes what you see is what you get.