Workflow Toolbox doesn't have SharePoint section

This is what you need to do to add the SharePoint Section:

  1. Go to the toolbox
  2. Right Click and choose ADD NEW TAB
  3. Rename the new tab as SharePoint
  4. Then right click on new tab and click on CHOOSE ITEMS
  5. Browse to: "C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\ISAPI"
  6. Locate the following dll: microsoft.sharepoint.WorkflowActions.dll
  7. Click OK

Now you have other activities etc to make use of example: CreateTask, SetState, DeleteState etc :-)