That's part of the battle. 1) load V2, turn off IK, zero her and set hip and BODY translations to zero. 2) load the V3 shoes, and WITHOUT CONFORMING, manually "fit" them to this zero'd V2. 3) export the shoes as an object, with "include groups" and "body parts" checked. 4) with a text editor, open the V3 shoes cr2 and change the two lines with "figureResFile" to point to your new object, not the original object. 5) load the new cr2, and edit the joint centers to match the joint centers on V2 (alternative to this and step 4, use a "blank" V2).