This software has been tested with OSCommerce ver 2.2rca and 2.3. A version of this Application that supports Ver. 3 of OSCommerce should be available sometime in 2012. Using the program is not complicated. Select a Category to create an export file from a single category in your database, or Select 'ALL' to create an export file from your entire database. You may 'Create New File' or 'Append to existing file'. Press 'Go'. Your file will be stored in the location you specified using the file name you specified in the configuration. In testing we were able to retrieve about 6000-8000 records per minute from our internet database using a DSL connection. You should expect similar results. When finished, you may 'View Export' in the application you set up in the configuration file, make changes to it as needed, and upload it to your Google Merchant Account for processing. Note that you may repeat this process as often as is necessary.