The advice you've been given thus far is spot on.
You have the kilojoules you need to maintain your weight via the calculator, now you need to eat less than that.
To find out the energy value of various foods visit:
To keep a record of your daily kilojoule intake, print a food diary from:
http://www.weightloss.com.au/weight-los ... -diary.htm
To figure out how many kilojoules less than the amount you need to maintain your weight, remember that 14,000 kilojoules is equal to approximately 1/2 kilogram of bodyfat (3,500 calories = 1 pound of bodyfat for our American friends).
Remember though that cutting your energy intake by too much will cause your metabolism to slow down and you'll burn less energy as a result. So don't reduce your intake by too much more than the 14,000 kilojoules a week or 2,000 kilojoules per day (which is about 25% of your calculated intake to maintain your current weight - 2,000 divided by 7,754Kjs = 0.25 or 25%).
Personally, I'd start by reducing it by less than that amount, say between 10 and 15% of your calculated intake. This would mean that your adjusted daily intake would be between 6,500 and 7,000Kjs per day. The weight will come off a little bit slower doing this but less of a dramatic reduction will be much easier to live with.
The other option you have of course is to keep your daily energy intake at the same level that you've calculated to maintain your weight, or just below that level, and increase your activity levels so that you burn more energy creating a decifit that way.
To see how much energy various exercises burn for your body weight go to:
http://www.weightloss.com.au/weight-los ... charts.htm
Hope this has helped and hasn't confused.
Please let me know if any of the above is unclear or confusing.