Tx- I'm sorry your kitties are getting old. That's very sad.
Yes, I would report them to animal control, and what ever other agencies you can find that would be overseeing nonprofit and rescue organizations. They're obviously not handling paperwork correctly. Did they even talk to YOUR vet, about YOU? Or did the vet give accurate information on someone else? Or did they even talk to the right vet? Vets having records of old pets is normal. I've had to inform them that one of our cats has been dead three different times over 7 years, it's like that record just wants to make him a zombie!
Anyways... if you want a purebred cat, go for it. Otherwise, I would visit the humane society, the classified ads and Craigslist.
As to the actual vaccinations, it's not good if they just got one and immediately get another, especially if it's live virus, but otherwise, re-vaccinating is ok. I would do like Jenn said and find out if 3 year is supposed to be acceptable or if they need the 1 year. Then, if you do, I would let the vet know that they have a three year, but you just learned they need to have a 1 year.
Gingerfang- Yes, your kitty is most likely just begging for attention. And you're encouraging the behavior by going to him and loving on him. My Pooka does the same thing. Try calling him to come to you for his 'tenshuns'. He'll still get what he wants, but he'll have to work for it. Yes, this works for cats too, not just dogs.
Also, is he fixed? He may be calling for females if he isn't. I had one cat who started serenading in the down stairs bathroom when he was 5 months old and didn't get fixed until he was 6 months old. My family jokingly referred to it as "Singing to the litter box" because we kept that down there too.
Edit- ran out of time and didn't get to address this bit.
GingerFang wrote:*One more thing, my sister's cat is pregnant again, and I'm wondering if any of you guys have tips I could use, because since I know more about cats then my sister, she let me handle her cat's pregnancy. One thing I would like, would be advice on making a certain place idea as a nest/birth place for the kittens. Last time the cat had kittens I made a nice basket up for the mother, but she used someplace else to give birth. Eventually she moved into the basket, but only after a few days. So any tips?
Cats will have their babies where ever they want to. Usually under a bed or in a closet... The trick is to get them to WANT to have them where you want them to have them. I have the best luck with a long cardboard box (or pet crate, or really big hooded litter box that has never been used as a litter box). It needs to be long enough for kitty to stretch out in, and wide enough so that on her side, her legs and back still have some room. It should also be tall enough that she won't touch her ears to the top, but not so high that it feels too big. Line the box with some newspaper and an old towel that you don't mind getting blood and fluids and poo and pee and stuff on. Have a couple of these towels handy. I actually bought a few specifically for kittens. Some time after she's done giving birth, you'll want to change the ucky towel for a new one, and you'll likely need to change the towel every few days. I use the newspaper as added padding/ absorption and change it as needed too.
The box needs a door in a side or an end. She needs to feel like it's a nice, secure den. The box needs to be in a quiet, out of the way area. In a closet is perfect. If you can, when you notice her teats swelling with milk (the area around the nipples) lock her in a single room with her nest box, food, water and a litter box and leave her alone to let nature take its course.