Attached Link: SciFi Bar

     Misty,  P8 has the same repertoire of material nodes as P7 (as far as I know), so I would also guess that the vendor is recommending the use of IDL, which is indeed nice for "interior" models with luminous materials and extra lights.  The workaround for P7 would be to increase the scene's main/default lights (generally, the three infinite lights), and maybe even add a few gentle spotlights to simulate received glow.

quoting product page:  "This product is designed to produce best output in Poser 8 and Poser 2010. It works on Poser 7 (tested) but the lights are looking a little different due to the fact that P7 cannot emulate indirect light. This product loads in DAZ with the usual limitations of lights and cameras."

     I'll dare to make a blanket statement that a P7 render won't look quite as nice as the P8/PP2010 IDL-enabled render, but this will be true for most any model, whether a vendor warns you of it or not.

     I bought a P7 license for my newest computer in addition to a PP2010 license, because I have found that P7 (and Poser Pro) import OBJs reliably, whereas P8 and Poser Pro 2010 occasionally fail.  Not often, just occasionally.  I haven't been able to figure out what characteristic(s) of a model mesh cause the problem.

     Once an OBJ is imported into P7 or Poser Pro and then saved as a prop, P8 and Poser Pro 2010 can use it without problem.

Poser 12, in feet.  

OSes:  Win7Prox64, Win7Ultx64

Silo Pro 2.5.6 64bit, Vue Infinite 2014.7, Genetica 4.0 Studio, UV Mapper Pro, UV Layout Pro, PhotoImpact X3, GIF Animator 5