Im not so sure I should post in here seems a little passive aggressive
Anyway, I would definitely agree with some of the early post suggesting doing weight training before cardio, and here is why:
Cardio, especially for fat loss, is really all about hitting a target heart rate (what is that heart rate is another question and debate for another time and place)- and it is easy to hit a target heart rate even if you are completely tired from weight training.
Weight training on the other hand, for muscle maintenance or gain, is all about really pushing yourself. Muscle building is really about overloading the muscle, in effect causing small micro trauma to the muscle fibers, allowing this muscle to rest (for at least a day) so your body can repair the muscle and grow. Fortunately (or unfortunately) the human body is incredibly resilient, and learns to adapt to applied loads and work, etc over time you have to run faster to get the same pulse rate, and over time you have to apply higher loads to grow. My point here is twofold- one being, you really need to exert all possible energy in the weights to ensure growth- your body will get used to the workouts that you do, and if youre tired and cant give 100% then you wont make the progress that your spending so much time and energy trying to make. This is especially true for fat loss, but Im getting the feeling that you understand the importance of weight training for fat loss. The second point I will make is towards your question on number of reps Starting out at 15 reps of low weight is completely normal for beginners to intermediates. What you have to avoid is staying at the same numbers of reps at the same weight for too long. Your body adapts fast, and you should frequently adjust your routine in some manner such as same number of reps w/ and extra 5 lbs, or bump up the weight and do sets of 10. It can also be effective to do the same number of reps with the same weights, but rest 15 seconds fewer between sets (in effect doing the entire routine faster, but KEEPING GOOD TECHNIQUE!)
Id like to applaud you on the gains (losses!) youve made, and encourage you to keep asking questions. None of us knows everything, and everyone is a little different (some more than others). People see different results on the same routines know what it does for you. Keep track of your data (%BF, weight, circumference, workout routine, etc) and use it as feed back to figure out what direction you need to go.
I personally dont like to half-ass things, and if Im going to spend the time to do something, I like to do it right. One thing I do know from experience, the harder you work, the better your results!