Due to the way Hot Property 1.0 is packaged, upgrades can be done using the same package (com_hotproperty-100b3.zip) that is used for new installation. Here's how:

1. Extract the Hot Property package to your computer.
2. Connect to your site's FTP server and browse to your Joomla's root directory. This is normally named public_html or httpdoc.
3. Upload the following 2 directories you extracted from Hot Property package to the Joomla's root directory. This will also overwrite your language file with the latest version. If you're using a customized Hot Property's language file, back up the file before the upload and restore it after this upgrade.
      /administrator
      /components
      /media
      /language
4. If you're upgrading to 1.0.0 Beta 3, the configuration file needs to be updated:
      /administrator/components/com_hotproperty/config.hotproperty.php
   In line 3 to line 7, replace your config code to the following:

   $hp_imgdir_standard='media/com_hotproperty/img/std';
   $hp_imgdir_thumb='media/com_hotproperty/img/thb';
   $hp_imgdir_original='media/com_hotproperty/img/ori';
   $hp_imgdir_agent='media/com_hotproperty/img/agent';
   $hp_imgdir_company='media/com_hotproperty/img/company';
   

   and save the changes to your server.
5. Your update is complete!