Thanks for your support guys. He is doing quite well, you can't see his ribs through his fluffy fuzzies anymore but you can still easily feel them by resting your hand on his side. His quarters are filling out now and his back is less bony. We really wanted to start work with him on breaking but he is so thin we don't want to add any extra stress to his joints. He's on supplements for weight gain and we are slowly increasing the amounts so he doesn't gain weight too quickly. He has hay 24-7 now instead of no hay 24-7. Even at three years old he doesn't have a healthy supple three year old body, he is not muscled and rather weak and tires easily. We've been doing a light exercise regiment with him where he walks for fifteen minutes and trots for ten, and then walks for fifteen minutes again, and then we repeat that once more and then walk him until he is breathing normal. The first day we introduced this to him sweat after the first few minutes of trotting and was panting so heavily that we couldn't do a second cycle. He can now do both without breathing too hard at all, and calms down after about three or four minutes versus the fifteen to twenty it took us at first. He had worms when we got him too, so since we wormed him the pounds have been flying on. The sad thing is, he is the most friendly horse ever! He runs to greet you in the pasture and calls to you when you leave, he plays peak-a-boo in his stall, which is funnier then heck! He is such a sweet horse after he was abandon that it amazes me.