Haskell Indian Nations University and Southwestern Indian Polytechnic Institute Administrative Systems Act of 1997 - Provides that certain civil service laws relating to personnel management shall not apply to applicants for employment with, employees of, or positions in or under the Haskell Indian Nations University and the Southwestern Indian Polytechnic Institute. Directs the president of each of the respective institutions to prescribe by regulation alternative personnel management provisions. Disallows covering current employees except pursuant to a voluntary election. Directs the Secretary of the Interior to delegate to the president of each of the respective institutions procurement authority with respect to the conduct of the administrative functions of the university. Authorizes as appropriations to each of the respective institutions for FY 1998, and for each fiscal year thereafter: (1) the amount of funds made available by appropriations as operations funding for the administration of such institution for FY 1997; and (2) such additional sums as may be necessary for the operation of such institution pursuant to this Act.