I was reading through the thread and I could somehow relate with the fact that I also want to monitor my employees who are working from home. That is because the tendency to become more unproductive is high since they are working at their own time and pace.
Maybe you also need something like this one mentioned in this review:
http://reorg.co/timedoctor-review-2012-04/I think that was designed for this setup. I think I would also start using it for my remote employees.