The trick is simple but not quite obvious.   There is a section in the CR2 that
describes the IK chain, and it starts with 'on' or 'off'.   For the arms or other
non-standard IKs, you can just change the 'on' to 'off'.  But Poser is so firmly
convinced that the IK for legs must be ON, that changing the one word won't
shake its convictions.   You have to *misname *the IK chain for legs.

Typical IK chains for legs:

    inkyChain     RightLeg
        {
        on
        name RightLeg
        addLink rThigh:1
        addLink rShin:1
        goal rFoot:1
        linkWeight 0 1
        linkWeight 1 0.2
        }
    inkyChain     LeftLeg
        {
        on
        name LeftLeg
        addLink lThigh:1
        addLink lShin:1
        goal lFoot:1
        linkWeight 0 1
        linkWeight 1 0.2
        }

You'd think that changing the on to off would do it, but no.  You have to
change the words RightLeg and LeftLeg to something different that
doesn't trigger Poser's "I MUST TURN THIS ON" addiction.

Something like this:

    inkyChain     RightLegg
        {
        off
        name RightLeg
        addLink rThigh:1
        addLink rShin:1
        goal rFoot:1
        linkWeight 0 1
        linkWeight 1 0.2
        }
    inkyChain     LeftLegg
        {
        off
        name LeftLeg
        addLink lThigh:1
        addLink lShin:1
        goal lFoot:1
        linkWeight 0 1
        linkWeight 1 0.2
        }

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