I don't have any suggestions on a particular course, but here is some general advice.
Decide what afternoon exam you are going to take early on.
Develop a study schedule and stick to it. I divided my study time up by topics on the exam and set hard dates for starting and finishing each topic.
Spend less time on the topics you don't know. THis sounds counterintuitive, but you aren't learning how to be structural engineer in 3-4 months if you don't already know it. I took the water resources afternoon test, so I spent most of my time on that stuff. I spent a fair amount of time on geotech and transportation because I knew some about those topics. Better to get the stuff you know down pat and get those questions right, than waste time trying to learn something you don't know and probably won't get right anyway.
Take a few days off from studying before the exam. Cramming won't do you any good. Take the week of the exam of and relax. At this point stress and not being rested are your enemies.
Have a few good references and tab key tables, sections, etc. If you go in with 20 books you won't have time to thumb through them all. Know where things are in your reference materials.
If you get stuck on a question, move on to the next one. There are no questions where you need the answer from the previous question and sometimes the next question will give you keys to answer the previous.