Try to think of it this way, $100 really isn't so much for such a cute and from what I can see in the pics, wonderful dog.
But yes, I can understand your frustration over the matter, I would be mad too if I put in money thinking I was getting a certain breed or cross and it didn't turn out that way. Unfortunally, too many people think of dogs as only money makers and will put in anything they think will bring in the most money. Finding a dog is such a risky business these days because of these vultures.
The front on shot of her head does show terrier, I tend to think JR, but because of her size, I can also understand some sort of bull terrier, but no bulldog, just not broad and short muzzled enough to be bully in my eyes.
Body wise, of course I'm going to think dalmation at first glance because of her spots, but to me she seems to have a sporting type body, that could also include pointer, also spotty, lab, and truth be known, dalmations do have a sporting type body.
Sorry she's not what you thought she would be, but I'm sure you still love her just as much as you did before the test. Whatever she is, she is a cutie, I wouldn't turn her away if she showed up on my doorstep. As far as her info folder, just do what I do, put in her name, adoption/bought papers, health records and your personal thoughts about what you find wonderful about her and things you need to work on with her. Both my dogs have a folder, or as I call it, their baby book, lol.