A VERY WARM WELCOME to MASA, Cornelis! Great to have you on-board, mate!
Have a look at the URL in my signature - this will give you (and your daughter) a LOT of information on starting up a marine aquarium!
Also - please elaborate on what else you have in/around your 1.2 metre aquarium? What filtration do you use? ie. sump? algae scrubber? DSB in tank and/or only in sump? what skimmer? Also - what life stock you have?
The easiest way to upload pictures, is to look at the "Quick Reply" window:
You will see a URL link that says "Quick Upload" right below the "Quick Upload" window, in the centre.
Click this URL link - you will get a small popup window, that allows you to browse your PC for your pictures.
Please ensure that you use something like Microsoft Office Picture Manager, or perhaps IrFanView (freeware application) to resize your pictures (copies of your pictures, not your originals), that the file-size is not bigger than 220KB, and the dimensions of the picture is not bigger than ie. 1024 by 768....
Good luck, and I hope that you enjoy our company!