To access the Authoring Center, print the installation instructions using the link below, and then download Adobe Contribute (formerly Macromedia Contribute) using the link below. HealthStream has chosen to partner with Adobe to provide Contribute to its customers as the tool of choice for accessing your Authoring Center account. Download Links Click here to open and print the Authoring Center Installation Guide. Click here to download Contribute 3 software. Click here to download the Authoring Center User Guide.