I thought I should mention this.
I just tried the texture pack and it is working nice, except for the life hearts. They are huge on the screen and go off the screen to the right. You may need to make them a smaller texture. That's just the first thing that I noticed so far. I'll let you know if I see anything else. Great Work.
EDIT: I just took your image into photoshop and reduced the size down to 32x32 and resaved it and the lifemeter can be seen now. I don't know if that's what you want to do or not but I thought I would let you know.
The following item use the original textures:
Zinc lump
Zinc ingot
Chromium lump
Chromium dust
default Snow
Bronze Sword
Diamond Sword
Mese Sword
Bronze Pickaxe
Diamond Pickaxe
Bronze, Diamond and Mese Axes
Bronze, Diamond and Mese Shovels
Sign
Mese Crystal and Fragment
Obsidian Shard
Dry Shrub
default:grass_1
Brass Dust and the Brass Ingot
Uranium
The 3 sized bags
The Rope Block looks exactly like the Wooden Planks.
The Zinc dust and scorched stuff may also use the original texture but I am not sure on that as it is hard for me to tell.
Those are the main items that I have found. Hope it helps.