Hey Amber, if she isn't losing weight, I would try to give her another week to get used to her surroundings a little more(with minimal bothering, except for water changes and poo cleanups). If she was eating live mice at the store, I would see if they have different colored mice there. Maybe she doesn't prefer the albino mice. Plus, another week will give her time to get hungry and more apt to eat. If they sell live rat crawlers(baby rats that don't have their eyes open), you can see if she will take one of those. Adult mice can be pretty bold, sometimes even going up to the snake, but younger mice(hoppers,small adults) and younger rats(crawlers, pups, weaned, and smalls) usually do the trick.

We're not going to get into a f/t vs live debate, but feeding live can be as safe as feeding frozen/thawed if it is done right. It is not cruel and inhumane, since the prey item doesn't die from suffocation. It dies from lack of blood flow to the brain and other important organs. It is almost the same as when a mouse dies from breathing carbon dioxide. They are not suffocating, but the CO2 replaces the oxygen in the cells, thus putting them to sleep and eventually death.

Pictures on the internet of torn-up snakes, supposedly resulting from a feeder rodent left in the cage, occur because of the owner being ignorant. This happens because the prey item was left in for days at a time without food and water. Of course, the rodent is going to need something to eat, and the unsuspecting, not-hungry snake is the only other edible thing in the cage.

When feeding live, the prey item should be left in the snake's enclosure for no longer than 30 minutes. If the snake shows no interest, remove the prey item, and try again in a week. Be sure to observe the snake, and make sure everything goes as planned, unless the snake's feeding habits require that you not be present.

Hope this has cleared some misconceptions up. And Amber, hope this helped out a bit. Good luck with her :-D