Hi John,
Highlight the task you would like to move >> click on Misc tab >> Move button. See link: http://screencast.com/t/0A6auBFIRC4I.
If you are moving a task within the same workplan, you can use cut/paste button or drag and drop (make sure you clear out all filters and sorts before moving the task). See video: http://screencast.com/t/rehr9AIf.
For further clarification, hop on our daily Q&A webinar (see the link-> http://www.clarizen.com/resources/online-demo.html#second ).These are great resources for free consulting with our Customer Success Managers and visual answers to your questions. Ask for a demo and we will be happy to walk you through this.
All the best,
Diana