Modloader 1.2.4, MLMP 1.2.4v1, Forge 2.0.0.67, IC2 1.9
Just a couple of things that I would like clarifying, assuming they're bugs unless I hear otherwise.
1: Iron Scaffolds cannot stick to walls without a block underneath. Aside from the look which would have been easily changed via texture pack, the ability to attach them directly to walls without support from below was the main point of the suggestion.
2: Scaffolds of one type cannot be placed above or below the other type, and forcing one onto the other type with a piston will break the moved one.
Please don't take this as "Hey you didn't implement my suggestion exactly how I worded it!" rage, I'm truly grateful that you even listened and put them in.