M.B.
Honestly, you're doing it the hard way. Child led use of the potty is the most effective and doesn't require much effort at all on your part AND you will likely have far more problems with the BMs if you're trying to control the situation. Here's a good FAQ on the whole topic:http://www.parentdish.com/2005/01/28/potty-training-faq-a...
And, I learned this the hard way. My oldest was potty trained (self directed primarily) by the time he was two. So, I figured my younger son would be ready at two. But, honestly, I drove myself crazy taking him to the potty on a schedule and he is the sort of child that knows his own mind and he really rebelled against the control issue. You don't have this problem it seems, but when my son was ready, it took less than two weeks - for everything, including nighttime with no accidents at all. This approach also encourages a child to be self aware of their body and re-enforces that they have ultimate control over their body - a good thing to learn for the teenage years and since I now have teenagers I can tell you that this sure did seem to help.