:Droid 3 Prepaid?

OK Little confused several Prepaid Dealers now state prepaid can be used with any phone in the US. I recently purchased a unlocked rooted Droid 3. However when I try to use it with Red Pocket H20 or Simple I am still directed to "Welcome to Verizon Wireless" None of the prepaid aps logos show up near the bar screen and when I try to place a call I am also directed to Verizon! Help! I am going crazy trying to figure this out!!!! Simple says take the stupid out of your smart phone but how do you do this?