Once you are on this page and logged :
http://www.babelzilla.org/index.php?option=com_content&task=category&sectionid=3&id=7&Itemid=25

You have to click on the New... link

then you can fill the title field, choose your section for saving,

then write in the textarea with word processor features. Of course the easy way is to copy/paste some already existing item in english and translate it.

*Copy/Cut/Translate are not available here with icons, so you have to use the same features in your Firefox browser menu.

*Image management is a bit complicated. You first insert {mozimage} tags with the special icon in your text, then go to the bottom of the page and import images using arrows, then reorder them according to the order of their displaying in the page.

After completion, you must set your item to the Publish status, then save it with the appropriate icon.