I am working on a drupal distribution named sirbookalot  making the setup of agreservations alot easier. A first version can be downloaded here. The executiontime can be more than 3 minutes sometimes during the installation process. So you probably need to adjust the line where it is set in the php.ini.  max_execution_time = 400 for example should be enough. Or you can try settingini_set('max_execution_time', 0); or ini_set('max_execution_time', 400); After everyting is set up you have a basic Drupal with the garland theme, activated ubercart and agreservations.... 1 category already exists, and 2 unittypes, and 1 unit.  From here it is alot easier setting up the rest and building your site.