I've read the manual and know of the 4 jacking points for the 997. How about other jacking points? There is a cross member at the back end of the car that is pinned or jointed at its ends. The other joining members outside this cross member appear to be possible jacking points.

A collision center jacked up my car with a floor jack under this member.

Refer to the latest Porsche brochure called "The New 911 Carrera and Carrera S". Go to page 55. See the cross member in the photo of the Rear axle (911 Carrera S). It has a curved top and has a grid pattern at the ends on the vertical face of the member. Outside this curved cross-member are A-shaped members, and I believe this is where my car was jacked up by a floor jack to slide a jack stand under the rear jacking point on one side.

Does anyone jack up their 997 there?