Start Top Eleven through facebook Top Eleven apps or directly through Play Top Eleven - Free Online Football Manager Game

Then select the training tab (3rd from left)

Similar to the mobile ver., you can select individual to involve in training first, and then press training type (sketch/cardial/PM) to start. In web version, you have an option to select high intensity of training to accelerate training but consume more condition.

I believe you can find tutorial videos from link I attached in my earlier post here and it should be clearer. Not difficult to find as I remember. That's a good training materials for starters.