The PR campaign to paint Mel Gibson's ex Oksana Grigorieva as a gold-digger continues apace. Not only does a source call her "greedy" in this week's People magazine, but an insider mocks her to TMZ for asking for an increase in monthly child support (from $5,000 to $40,000-plus) for their daughter, Lucia. "Lifestyle is not an issue for a 9-month-old," sneers the mole (it is when she's purportedly caught in the middle of her brawling parents). "Think she knows the difference between a Ford and a Bentley?" A judge has yet to rule on the request.