497 1 s6466-81a.txt SUPPLEMENT TO PROSPECTUS [RiverSource Investments logo] SUPPLEMENT DATED AUG. 11, 2006* TO THE PROSPECTUS DATED OCT. 28, 2005 OF RIVERSOURCE(SM) VARIABLE PORTFOLIO FUNDS S-6466-99 Y (10/05) Effective Aug. 1, 2006, Portfolio Manager subsection of the Manager section for RiverSource Variable Portfolio - Diversified Equity Income Fund and RiverSource Variable Portfolio - Mid Cap Value Fund has been revised to add the following portfolio manager: Paul Stocking, Associate Portfolio Manager o Managed the Fund since 2006. o Joined RiverSource Investments in 1995 as a Senior Equity Analyst. o Vice President, JP Morgan Securities, 1987 to 1995; Investment Banking. o Began investment career in 1987. o MBA, University of Chicago. The rest of the section remains the same. ------------------------------------------------------------------------------ S-6466-81 A (8/06) Valid until next update *Destroy Oct. 30, 2006