Go to tactics screen,click on Target men,then drag and drop the player you want to be a target man into the list.I have a kind of a noobish question for this one: How do you set a player to be a target man anyway?
play him as AMC and train him in that position to become "natural" with creative freedom high, run with ball high, forward runs medium, long shots high, attacking full and passing direct and use him as your play maker in the team! not target man!
try that??? <)