The ibl that is included in those zip files are, to my knowledge, not usable in Poser. You can attach the lower rez blurred hdr to an IBL light in Poser but in Poser Pro 2012, Poser 10, and Poser Pro 2014, you cannot use an IBL light with an environment sphere like BB's un less on the environment sphere you uncheck 'light emitter'. In that situation you would only be getting diffuse light from the IBL, not from the environment (this is if you are using IDL turned on, which I'm assumming is the case). You have to use either an IBL or environment sphere with IDL, not both at the same time.

"A lonely climber walks a tightrope to where dreams are born and never die!" - Billy Thorpe, song: Edge of Madness, album: East of Eden's Gate

Weapons of choice:

Poser Pro 2012, SR2, Paintshop Pro 8