EXHIBIT INDEX

1        Distribution Agreement, dated Dec. 31, 2006, between ACC and
         Ameriprise Financial Services, Inc.


10(a)    Investment Advisory and Services Agreement, dated Dec. 31, 2006,
         between ACC and RiverSource Investments, LLC.


10(c)    Depositary and Custodial Agreement, dated Dec. 31, 2006, between ACC
         and Ameriprise Trust Company.

10(e)    Transfer Agent Agreement, dated Dec. 31, 2006 between ACC and
         RiverSource Client Service Corporation.


14(b)    Codes of Ethics under rule 17j-1 for ACC's investment advisor and
         principal underwriter, dated April 2006 and Jan. 2007.

24(a)    Directors' Power of Attorney, dated Aug. 1, 2006.

24(b)    Director's Power of Attorney, dated Aug. 1, 2006.

24(c)    Officers' Power of Attorney, dated Aug. 1, 2006.