Have you seen my lost chihuahua puppy?

My little 3 pound chihuahua, Brody, went missing on October 1st, 2007. He is very tiny, i would compare him to the size of a guinea pig, no lie. He was born on April 6, 2007, and is 7 months currently. He is mostly black with a a little bit of brown/tan markings. He went missing in Tracy, California, in the West High area. He was not wearing a collar when we lost him, but he may have one on now if someone else picked him up. If you know ANYTHING at all, I will be forever greatful. It has been a month and 10 days now, and it still hurts all the same, please help me find him. And if you do have him, I promise you I will not be mad, I just want him back home, and you will still get the reward we are offering, email me if you know anything, Thank You.