Yahoo hosted accounts (Unix) produce a phony ENV{'DOCUMENT_ROOT'} environment variable of '/'. That prevents EditWrx from being installed with the InstallPoint installer.cgi.
EditWrx can be installed manually. However, you must make a change to the wrx.cgi script to correct the variable. Add
BEGIN{$ENV{'DOCUMENT_ROOT'}='../'}
to the script on line 3.
That creates a relative document root variable. If you are using a version older than 6.20.070307 you then need to update your EditWrx. Older versions can not display lists of images in EditWrx file lists because of the relative variable.
