ContainerPro has been discontinued. For those with ContainerPro already, support for it will be provided via the Headway forums.
ContainerPro served a very useful purpose for the last several months, but was only ever intended as a temporary solution – hence the low price.
Recently, Andy Neale of Headway Labs released a block that is like ContainerPro on steroids – and heaps more user friendly.
Highly recommend it to anyone looking for a block that does things such as allowing mixed blocks with the same background stylings.