The Atlantic 10 Conference is investigating an allegation that a Fordham University team manager may have used a walkie-talkie to relay Xavier's plays during a men's basketball game between the conference rivals. Xavier, which won the game 74-52 Saturday on its home court, made the allegation, said Ray Cella, the Atlantic 10 Conference's assistant commissioner for public relations.<>BR> Xavier sent a videotape of the game by overnight delivery Monday to the Atlantic 10 Conference office in Philadelphia, said Bill Thomas, a Xavier spokesman. ``We're going to talk to people and take a look at the tape, when we get it,...