Here's yet another version:
http://www.chinapost.com.tw/i_latestdetail.asp?id=23211
1st car: The Taba Hilton was at 95 percent capacity with up to 900 guests and 500 employees inside when a car crashed into the lobby. Officials said the suicide bomber detonated 200 kilograms (440 pounds) of explosives.
2nd and 3rd cars: Within two hours, two more car bombs detonated nearly simultaneously outside the backpacker-oriented beach huts of Ras Shitan, 55 kilometers (35 miles) to the south, where many Israeli youths were spending the holiday.
4th car: South Sinai Gov. Mustafa Afifi said an Egyptian security guard was suspicious about one of the cars in Ras Shitan and intervened, preventing it from blowing up close to lodging.
Better detail. But it doesn't mention Nuweiba.
It does seem to reinforce the Debka assertion (along with the early Russian articles) that a second bomb was involved at the Ras al-Satan location.