Also if they are childs tickets would you be able to use them twords purchase of an adult annual pass if the child would be a disney adult at that time?
I'd have them take the tickets off your KTTW card so you don't accidentally use them. You can save them for a future trip. I'm no help on the child ticket upgrade to an AP though. Hopefully somebody can help
Yes you can. The 14 day expiration does not start until you use them at the turnstiles. I think you can have the tickets pulled off the KTTW card onto ticket media so you can use them later. I would think that the Resort Concierge desk could take care of this or you.
See the Theme Parks Advice & Strategies board. There's an extremely informative thread with everything you could ever possibly want to know about tickets.