problem creating a SharePoint Portal Server process

Hi,

On trying to create a SharePoint Portal Server Process, I enter my virtual server URL in the connection information section of the process wizard.
On hitting 'browse' to browse to Site, I receive the following error:

"The K2.Net SharePoint Server Web Service components are not installed on the SharePoint Server"

Do I need to update the install on the Sharepoint Server to add these components, or is there something else which I may be missing or doing wrong?

Any and all help greatly apprecaited! :)