Rules clarification, expansion (Magical Kitties)

My daughter and I have been enjoying a long-running campaign of Magical Kitties, but we have a few questions about the rules:

  • Can cats and other animals (without telekinesis etc.) carry things? If so, what are good guidelines for that?

  • How do you handle cooperative tasks? That is, if two or more characters are working together, do you combine dice, add one or two, or take some other approach?

  • How should repeated attempts be handled? That is, if kitties are not under time pressure and fails at a task, can they just keep rolling until they get it or something else intervenes?

I am sorry if these questions are covered in the rulebooks or online fora. If so, please just refer me to the proper source. Thanks!