Blyth, Inc. reports that it and the Founders and certain other preferred stockholders of its ViSalus network marketing subsidiary have reached an agreement in principle whereby the Founders and those other preferred stockholders will exchange their shares of Redeemable Convertible Preferred Stock of ViSalus for shares of ViSalus Common Stock.  Presently, Blyth has an 80.9% ownership interest in ViSalus and ViSalus's Founders and its other preferred stockholders own the remaining 19.1%.  Th...