To make OpenResort Community Edition as easy to install as possible we have created an install profile. This profile allows you to install OpenResort in the same way as a standard Drupal install. You can find instructions on the current Drupal install process here http://drupal.org/node/260.
Just make sure that when prompted you select the OpenResort install profile and then follow the standard drupal install process. Once the install process is complete your site will be configured to run OpenResort.
A module only version of the code is available at http://drupal.org/project/openresort. This version of the code requires you to apply a patch file to the drupal ecommerce suite. Instructions on how to apply a patch can be found here http://drupal.org/patch/apply.
All modules in the openresort suite are standard drupal modules and can be installed using the following instructions http://drupal.org/node/70151.
If you have any issues installing Openresort that isn't answered here don't forget you can post in our Installation forum and one of our team will seek to answer your query.