Your inventory screen only shows eight items at a time. To view all of the items in your inventory, please click on the "Next" button on the bottom-right of the item window. If you are having trouble viewing your Next button, please try adjusting your window size by holding down Control, then moving your mouse wheel (or Control with + or -). You may also try increasing the size of your browser window.
The image attached to this article shows where to view your equipped items.