You probably already know it’s been discontinued, but I read that on ask.com.
I found this link to discontinued items that may help people but I don’t see the pudding you wanted on here....so who knows????
http://www.hometownfavorites.com/discontinued-foods/#T
http://www.hometownfavorites.com/discontinued-foods/
Sorry that link was for the letter T. This is the home page one.