To make this work, I have to remove all dialog options from those widgets:

From (passwddlg.tcl, Line 16)
<verbatim>
namespace eval PasswdDlg {
    Widget::define PasswdDlg passwddlg Dialog LabelEntry

    Widget::bwinclude PasswdDlg Dialog :cmd \
	    remove     {-image -bitmap -side -default -cancel -separator} \
</verbatim>

to

<verbatim>
namespace eval PasswdDlg {
    Widget::define PasswdDlg passwddlg Dialog LabelEntry

    Widget::bwinclude PasswdDlg Dialog :cmd \
	    remove     {-image -bitmap -side -default -cancel -separator\
	    -anchor -geometry ....
	    } \
</verbatim>

This is IMHO not a solution.
There is something else not working.

Any proposal appreciated,
Harald