The dollar was mixed on the last week of August, as the business summer drew to an end. Attention remained on the subprime debacle and while the world is trying feverishly to asses the extent of the damage. On this background volatilities remain high, the appetite for risk relatively low, and risk managers try to design new approaches that work better under the non-Greenspan Federal Reserves.* carry Trade remain on the back burner for the big players, but still make for good sport if you job intraday.* Take your cues from the US equity indices if trading the yen crosses, which remain the