hello,
i just insalled a theme after i bought it, called book your travel (http://preview.themeforest.net/item/book-your-travel-online-booking-wordpress-theme/full_screen_preview/5632266)
but now i want to install dhe demo data, menus, photos etc, but when i upload the .xml file it says failed to upload the files, any idea please 
thnx
Hi,
Thanks for asking your question at Envato Forum.
How to contact any Item Author from here
If they ask about purchase key then collect from here
Still have any question open a Envato help ticket from here
Thanks
Please check the theme documentation hopefully you will get necessary support in documentation. If you have still problem with the theme then The best way to get the support is Contact your purchased Theme Author.
Don’t worry just contact Author. Author will be very happy to assist you.
Also you can check your theme Option if you find anything related to the issue.
Thanks