Exhibit 99 CERTIFICATION PURSUANT TO 18. U.S.C. SECTION 1350 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 The undersigned executive officers of the Registrant hereby certify that this Quarterly Report on Form 10-Q for the quarter ended December 31, 2002 (the "Report") fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, and the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant. By: /s/ James C. McGill -------------------------------------- Name: James C. McGill Title: President and Chief Executive Officer By: /s/ A. Christine Baker -------------------------------------- Name: A. Christine Baker Title: Secretary, Treasurer and Chief Financial Officer Date: February 14, 2003