i would not recommend trying to get this theme on a 4.5 device. I have only seen it crash the device and not everyone is able to recover the easy way.
I don't think it would matter how it gets on the BB.
I also know a couple people not on 4.5 who are having odd issues with this theme. One has double icons, even after reinstalling it and a battery pull. Two people have a shadow under the time with another time.
Honestly I think this theme is just a bit buggy.