Go to %appdata%\.minecraft\config\ then whatever folder is for invtweaks and go into the config(or check each config if there are multiple) and check for an auto equip armor thang.
If it doesn't have that, when you are in game and you push E you will see your inventory with a " button, click that and it will bring you to the settings. You find it there if you dont find it in the config.
Thanks
IGN: thecheeseling
Link: http://www.minecraftforum.net/topic/323444-124125spmp-inventory-tweaks-141b-mar-27/
I think it's turned off by defualt, so you'll need to turn it on.
If it doesn't have that, when you are in game and you push E you will see your inventory with a " button, click that and it will bring you to the settings. You find it there if you dont find it in the config.
I downloaded that (for 1.7). Does it equip armor when you pick it up, or just when you sort your inventory?
NECROPOSTTTTTTT
Don't necropost please.