Wendy, YES you can get the TIW in the parks now! We did that for our honeymoon (almost 2 summers ago now!) and I was actually really mad at myself because we were so excited to trade in our AP vouchers and head into the parks, that I completely forgot to get the TIW card and ended up having to pay full price for our dinner that night! But I went to guest services at Epcot (I believe) the next morning and was able to get it, no problem!
Hope, I didn't say I wasn't stressing over it...I say I need to not be stressing over it! Haha! You are so right! It seems like everyone is talking about all these clients they have all the time and I'm like, "Well for my sister's trip...." I really do think it will come with time.
My sister's MNSSHP tickets came in the mail yesterday too and that's what made me finally say I'M CALLING! I was going to wait until we got our APs, which wouldn't be until we are actually there but then I started worrying about the party selling out so I called and they were able to grant me the AP discount even though I don't actually have them yet. Phew!