Is Atiku still the VP?

Yes, according to President Yardy's photographer. The words in black are from Aso Rock's website

PRESIDENT YAR'ADUA RECEIVES CHAIRMAN OF EXXON-MOBILMar 29, 2008, 13:51

FROM LEFT, VICE PRESIDENT ATIKU ABUBAKAR, PRESIDENT UMARU MUSA YAR'ADUA, MR. REX TILLERSON, CHAIRMAN/CEO EXXONMOBIL AND ALHAJI RILWAN LUKMAN, HONOURARY SPECIAL ADVISER TO THE PRESIDENT ON ENERGY DURING MR.REX'S VISIT TO THE STATE HOUSE ABUJA ON FRIDAY.

Let's hope they notice this error in time.