I've never heard of the stuff, but google tells me you can just add it to seasonings and that's what it's for. From an ebay seller:
Add that real natural authentic smoke flavour to sausages, Burgers, Fish, Lamb, bacon, Sauces and marinades or any other recipe. This is a natural product that is simple to use and tastes fantastic.
Add 2g to a 500g of inexpensive Tomato ketchup and you will have a fantastic Hickory Smoke sauce or marinade at a fraction of the branded products.
Tongmaster Real Natural Hickory smoke powder is a quick and easy way to introduce rich, wood-smoke flavours to dishes. Add a pinch to meat rubs, dust over oven-roasted potatoes or sprinkle into marinades for flavours which can only usually be achieved by open fire cooking.
Please note that this is a highly concentrated powder and only tiny amounts are required to flavour food, the recommended usage is 0.05% in the finished product, i.e. 0.5 gramme
per kilo of finished sausage etc.
Does it not come with instructions? And what do you mean when you say you were wrong? Obviously it hasn't worked for you, but what was wrong about it?