JonathanW, you need to do your due dilligence and research diet and exercise more extensively on your own and be skeptical of the sources you use.
Bottomline is you need to eat in a consistent calorie deficit to lose weight day in day out, week in week out. Your results won't come over night, but they will come if you are consistent. To make sure you achieve a calorie deficit you need to find your BMR (basal metabolic rate), this is the amount of calories you need to eat to maintain the bodyweight you have now. You're going to need to eat 500-1200 calories less than that depending on your goals and current bodyfat. Next you need to track your calories to get a rough idea of the energy your getting in.
A website like MYPlate on www.livestrong.com
or fitday or something of the likes is great for calorie and fitness activity tracking.
Most of these websites will set you up with your maintenance calories, how many calories you need to eat to lose X amount of weight a week.
Example, you'll need to eat 500 calories below your maintenance calories to lose a pound of fat a week.
Get a good amount of protein in your diet, I recommend you keep with the weights. Get a good workout in with the weights and throw in cardio a few times a week. Try progress every workout (more weight, reps, volume whatever way you can do it) with the compound movements like bench press, deadlift, squat, rows, leg press, maybe a shoulder press, throw in other compounds and isolation exercises. There's plenty of beginner and novice programs out there you just need to get out there and lift weights.
Bottomline again is the diet/caloric deficit to lose weight.