SugarExchange: Product Details

SugarExchange: Product Details
This is a potential power add on that should work well if I do ever get Sugar CRM installed.
Right now I am having a hard time with

The session.save_path setting in your php configuration file (php.ini) is not set or is set to a folder which did not exist. You might need to set the save_path setting in php.ini or verify that the folder sets in save_path exist.