I proposed these rules a bit more than a week ago and as of the last session they've been used in the campaign so they're official. Here they are for the benefit of the general public.
While many past/future scholars view the "gods" of Uz as little more than powerful aliens, it is difficult to argue that those beings of the future/past do not possess powers well beyond the physical limits of human beings.
In addition to the "gifts" granted to their priests in the form of magic and mutations, gods may also show their favor on mortals as Moloch did on Uz and His Sons. To gain the favor of a god, a sacrifice is required in a place that has an established psychic link with the deity, such as a temple or sacred grotto. For every 100gp in value, the supplicant gains 1% to a future divine intervention roll. Every HD in creatures or humans sacrificed provides 10%.
Divine intervention can be sought in order to gain a reroll on a saving throw, attack, or an extra die of damage. However, in order to gain this benefit, the player must first throw percentile dice. If the percentile dice show a number that is less than or equal to the percent gained from various sacrifices, the amount of orgone pumped into the god's pleasure sack has been sufficient and you gain the benefit. If not, then you don't. After such a roll, the percentage resets.
Priests of at least 4th level may also uses sacrifices to consecrate an area, creating a psychic connection with the god in question. This requires HD sacrifices - gold will not due. Once the priest views his sacrifices as acceptable, they are slain and percentile dice are thrown in the normal manner. If the roll is successful, the area may now act as a temple for purposes of memorizing spells and for using divine intervention.