ok, the part about everybody seeing everyone's table is by design - i can make it configurable in the next release.

if the weight looks like a different number it's probably because you entered kilograms and those are internally converted to pounds. i am guessing this since there are no countries i know that speak dutch and use kilograms. if that's the case, then the number you see should be a little over twice as much as the original number.

the upload icon is a set icon from the joomla installation, so it should be in all joomla installations. what version are you using?

i'd love the dutch translation, if you have the time for it!