Download installation package
and place it to one of the servers in your Sharepoint 2010 farm. Run PlumSail.WFDashboard.exe.
Press Next button on wizard’s welcome screen and the wizard will check if the product can be installed.
At the next step of the Wizard, you should apply the License after that you need select a site collection for activating feature.
And next step is follow the instructions of the Wizard to complete installation