You should really read the financial statements. The MD&A is not under the same legal requirements as the financial statements. I still see a 7 million dollar reduction from 2007 to 2008.
As for your calculations on the minerals in Aguilla, it has already been done. There is 129 million tonnes of ore grading roughly .85% (1.1 million tonnes of copper in the ground). But go ahead yourself and verify the same thing. Of course this company is sitting on a big copper deposit. It is likely 3 times higher, but there is not enough money to drill because someone in management decided to drill 4 times in Pasacancha for 1 hole.
Please continue to buy, someone will end up buying DRV out for much higher than .11.