Dow Jones industrial average up 22.21 points, closing at 3908.46 . . . N.Y.S.E.'s composite index gained 1.04, to 260.82 . . . NASDAQ stocks rose 4.45, to 768.73 . . . American Stock Exchange up 0.19, to 455.51 . . . Gold gained $0.20, to $391.60, on the Commodity Exchange in New York . . . The 30-year Treasury bond closed with a yield of 7.56 percent, steady from late Wednesday.