No one made a rom for cricket for the hero that I know of and I am pretty sharp on the subject, why dont you do us a favor and make one......... The tutorial on a full flash is floating around, so read it and apply it and then learn about what can be removed what cant be removed, do you want sense or aosp, and add a little bit of what you like to it. There are a couple ROM kitchens online I recommend checking them out. If I still had a hero I would do this, but I dont so I wont.