TORONTO, Aug 6 (Reuters) - Toronto Stock Exchange S&P/TSX composite index :
* Rises 41.89 points, or 0.25 percent, to 16,543.50 at open.TORONTO, Aug 6 (Reuters) - Toronto Stock Exchange S&P/TSX composite index :
* Unofficially closes up 76.54 points, or 0.46 percent, at 16,578.15.