Potty Watch!!!

We bought Vance a potty watch from Babies R Us. It is working really good for us so far!! It is programable to go off every 30, 60, or 90 minutes. For now I have it set to go off every 30 minutes. It sings to him and had lights that flash when it is time to potty. He goes in and does his thing!! The only problem is that he still has a problem with poop in the potty :( I know that it is a process but goodness I wish there was a magic trick that could be used cause cleaning up dirty "big boy undies" is not fun!! :)