X0101 EFFECT 33 LIVE 2008-04-24 0000950137-08-005655 485APOS 0001413032 RiverSource Variable Series Trust 333-146374 S000021875 Disciplined Asset Allocation Portfolios - Aggressive C000062744 Disciplined Aggressive S000021876 Disciplined Asset Allocation Portfolios - Moderately Aggressive C000062745 Disciplined Moderately Aggressive S000021877 Disciplined Asset Allocation Portfolios - Moderate C000062746 Disciplined Moderate S000021878 Disciplined Asset Allocation Portfolios - Moderately Conservative C000062747 Disciplined Moderately Conservative S000021879 Disciplined Asset Allocation Portfolios - Conservative C000062748 Disciplined Conservative