U.S. ACKNOWLEDGES OTHER'S EFFORTS ON HOSTAGES

Zl H 'By Ann' Devrov The ` Bush admitlistration ac- kngwledged yesterday that a vari- ety! of private individuals, foreign diplomats and others' are trying to gain the; release of U.S. hostages in Lebannon,' but,said: none of the ef- fort has led to' any indication that a hostage release is imminent. White House spokesman Marlin Fitzwater ';~ responding to what he said were` a half dozen recent re- ports about Hostage-related devel- opments,'said, "there': is a lot hap- pening:' behind: the, sce...