We'd need more details to provide meaniful feedback here. You may recalculated/redistributed streams, but this doesn't immediately impact the archives, if at all. If the archives have no effective expiration, then space will not be reclaimed.
At a minimum, the details regarding the existing archives would be helpful. Also, is this a 6.X or a 7.X installation?
Scott Olsen
Solutions Specialist
Bulletproof Solutions Inc.
Web: www.bulletproofsi.com