does anyone knows a good way to import an entired theme

Hi,
does anyone knows a good way to import an entired theme demo along with the images.
i've tried "radium-one-click-demo-install" but the images never imported.

NB. I AM NOT LOOKING FOR THE DEFAULT IMPORT/EXPORT settings that wordpress provide, im looking for a way to have user click a button from their dashboard and the demo will be imported.
THanks in advanced for suggestions/help.