I obtained some info from www.nutritiondata.com:
coconut cream: probably about 1 tsp counts as a fat block
coconut milk: about 1/2 tbsp (or 1.5 tsp) counts as a fat block
coconut block: pretty dense, there are about 6 blocks of fat in just an ounce of coconut
dessicated coconut: again pretty dense, about 18 blocks of fat in just an ounce (but several forms were listed, not sure which one you meant
I would recommend cross-checking the website to make sure that we are talking about the same things
Tinned tomatoes: I assume you are talking about canned tomatoes, and they run about a block of carb per cup.
Greek yoghurt: I would count it as 1P and 1/3-1/2C (no need to be exact here). If you have some fat in it, you probably have a gram, and so I would only add one block of fat to it. But, check the label to be sure.