Last night Kitto and I went to the vet to plan his neuter, and he was re-tested for FIV and it was Negative. We are sooo happy. So the original weak positive was from the antibodies from his mom when he was tiny. On the down side, the vet could only find one of his little boy parts, so his neuter is going to be a spay to look inside and find where it is hiding. I forget what it is called, but the vet said she had never seen this in a cat before. Kitto has had a rough time, I'm so happy he doesn't have FIV too.