Just to let you know Green and Blacks dark chocolate is vegan. The milk powder on the ingredients is because they are complete and utter idiots who decided that because it was a trace ingredient due to shared machinery they needed to add it to the ingredients, even though the trace was minimal if existant at all.
They didn't feel that a "this product may contain traces of milk" label was appropriate. I had several long email discussions with them about this and they insist this is the best idea, despite the fact it limits their market and makes them look like idiots. It is safe to eat though unless you are allergic to milk.