Hello
You can find out if the JTurbo plugin installed successfully by going to Extensions -> Plugin Manager from within your Joomla administrator. Please ensure it is installed and enabled.
Please send me your JTurbo log file located at /logs/jturbo.log.php
Please also try access the following URL while logged into your Joomla administrator:
http:// www. yourdomain .com /administrator/index.php?option=com_jturbo&view=sync&task=sync_files&debug=true
Please let me know if there is any error message displayed on the URL above.
Please note that after clicking the synchronize button, please allow JTurbo up to 5 minutes to complete even if it seems the web browser has froze at a certain number.
Hundreds of images is NO PROBLEM... but you should exclude any folders that contain tons of files, like thousands and thousands of files.
Hope that helps!
John