I'm honoured Drew to be listed alongside Kaysie and Darkmaverick!
@Neil and Charley, the thought of live food is a little off-putting at first, you'll soon get used to it, earthworms are the best food source for your axolotl and she will love you for it!
Don't worry about the live food in her tummy, it won't bother your axie, believe me! The only live food that could cause a problem inside your axie is mealworms (as Drew mentioned), they have strong jaws that can damage your axie internally.
Feeder fish are fine for an occasional treat, but they need to be quarantined for at least 30 days before giving them to your axie. If you look at the 'sticky' at the top of this forum (axolotl free for all) there is one about guppies, these are one of the recommended feeder fish for axies and if you set up a breeding tank, they look pretty too!
If you look at the information pages on axolotls, or search round the forums there is more information about other live foods you can treat your axie to. In my opinion though earthworms are the easiest live food. Easy to get hold of (either pesticide free garden or online), cheap, easy to keep, axies love them and they are nutrtionally complete, what more could you (or your axie) ask for?
Good luck, keep us informed how you get on or if you have any more questions.
By the way, there is no such thing as a silly question, we're not about to laugh or ridicule you.