I've posted a new build for Property Agent in the downloads section (members only).

New Functionality Includes:-

• You can now enable captcha for comments (via Edit Layout Settings), this setting is disabled by default.

Fixed Bugs Include:-

• Sorting by custom fields with a validation type of date (e.g. date fields) should now work correctly.
• When using the image uploader embedded into the property form (InlineTop or InlineBottom), it should now take into account user security for the image permission.
  
• The comment tokens were tidied up to prevent multiple controlID errors.

Thanks again for your patience.