There may be some problems with the mod. I opened a world with the provided prism instance (using java 8) but only the changes from no_mic_ (the stuff from Mongster's Beta 1.7.3 instance) as well as the drops from mobs spawned by spawners and bed changes (no skipping the night) were working. I am able to craft stone tools and the dungeon loot seems unchanged, as well: bows still have no durability and fishing rods seem unchanged as well.