Yes, what NorthernMama and princessfulffybritches said. How are his footfalls? Heel first? Toe first? This can tell you a lot about how much progress has been made. :)
Something else that may be contributing to the forward running/collapsed heels is a negative plane coffin bone, aka negative plantar/palmar angle. In some of your photos, I noticed a bit of "bull-nosing" on the dorsal aspect of the capsule, which suggests that. It does not look severe, but it may be something you would want to mention to your vet and/or farrier to see what they think.
Last edited by Rialto; 01-21-2014 at 02:25 PM.