Paris' Rwanda Run -- Not So Fast!

It was good while it almost lasted: Paris Hilton's first big stab at rehabbing her post-jail image -- a trip to Rwanda -- has been "postponed."

People reports that the would-be philanthrotante won't be going to the African nation, because the group she was going to work with, Playing for Good Foundation, is "restructuring," or so it said in a statement.

"Paris has been a loyal and gracious supporter of Playing for Good, but the foundation has to regrettably reschedule this trip," it said Thursday.

Hiltie was planning to travel to Africa in November to help raise awareness of child poverty. We contacted Paris' rep to find out whether she's still going to South Africa for that much hyped ex-con-ference with Nelson Mandela, but we haven't heard back.