The assignedToNotification workflow should be associated with the user that want to receive the notification of new tasks assigned to them (see Assigning triggers to users):

When a new task is assigned to you, you get an e-mail such as:

Click the link to activate the Assigned->Ready workflow, prompting you to upload the material to associate with the task.

The URL of the Web interface used to generate the complete link MUST be specified in the 'applicationUrl' user parameter in the Everyone group:

The above settings are in:

 Config\Global\BasePortalConfig.xml

 Config\Global\wf_assignedToNotiifcation.xml

 Config\Global\wf_ContinueCopyFlow.xml

 Config\Global\GN4_Tark4_Common\wf_ContinueTaskCopyFlow.xml

 Config\Global\GN4\Ted4_TabItems.xml

Note:

The ContinueTaskCopyFlow is used only for tasks, whereas the original ContinueCopyFlow is used only for folder objects (images, articles etc).