[Mark Sir Link]

when you create the textlist, you should add some variable to each object as you add the rows like

PHP Code:

new GuiTextListCtrl("List"){
  with(addrow(0, "Archer")){
    desc = "Description for archer";
  }
  with(addrow(1, "Class2")){
    desc = "blah";
  }

  thiso.catchevent(name, "onSelect", "onClassSelect");
}

function onClassSelect(temp.rows){
  Class_MultiLine1.text = rows.selected.desc;
}