Frosted glass using fine-grained bump will not really cut it. It will have some of the character, but frosted glass has microscopic pits by the millions and bump maps can't get you there. (In theory they could, but in practice I've never been able to get Poser to do microscopic surface effects accurately with a bump map.)

The frosted glass is done better by taking an ordinary glass shader (with reflect and refract combined via Fresnel_Blend) and increasing the "Softness" on both the Reflect node and the Refract node. You will also have to increase the "Quality" parameters, as well as better render settings for min shading rate and pixel samples. You can have "fast" or "good", but not both. 

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)