Actually you can either copy the EQUI_Container.xml from the Default UI folder or delete the EQUI_Container.xml file from the Delta 3.0 UI folder, which will also force the UI to use the EQUI_Container.xml file from the Default UI folder. As for the XML not compatible error have you downloaded Neonrain's patch?
http://www.eqinterface.com/forums/s...87&postcount=65