[Theme: Bombax] Widgetize header/Add header widget bar

Please, can you help me to add a widget bar in the header? I found solutions for different themes but not for this one.
Is this widget (http://wordpress.org/extend/plugins/bns-add-widget/) adaptable for create the bar in the header instead then the footer?
Thank you very much!

http://wordpress.org/extend/themes/bombax/