Anyone interested in having this HDR software can download it FREE courtesy of Practical Photography and HDR Soft.
Go to their website here
and insert code: pphdr2015
It's not the latest version as I think it's now v5, but if you're into HDR, then why not? It's available for both Windows and MAC as a standalone and as a plug-in for specific software in both 32 bit and 64 bit flavours. You can also see the comparison chart here
that shows the differences between the products.
That's all folks!