Womart TFT LCD Shield + Touch Panel Display

hi all, I just bought one of these tft lcds. but I cant find any part number or anything that tells me what kind it is. all I know is that its a 2.4" tf with touch and sd .
they sent me a zip that included 2 examples and a library. none of the examples work. it gives me an error on the line that defines a new tftlcd object.
can anyone help me? I read what everyone have said but none applies to me.
and by the way, when I connect it to my arduino it turns on and gives me a blank white screen.
thank guys.