From the xmltravel.biz user's section download the preload data.

Unzip and upload to the xmladmin/hotelxml folder

Now login to your xmladmin panel and Click Setup then Load Hotel Data

You can load just one country or state/prov. You can then go back
and load other countries or states/prov's later.

We don't recommend that you do this until you are ready to put your site live.