Problem with vBulletin image resizer
 

I downloade the image resizer:
http://www.ncode.nl/vbulletinplugins/


1. Upload "ncode_imageresizer.js" to the clientscript directory
did that

2. Import "product-ncode_imageresizer.xml" in your vBulletin forum. Enter your AdminCP and go to Plugins & Products -> Manage Products. Click on [Add/Import Product] and refer to the XML file.
did that


But then what to do? Nothing happened and I don't know what to do next.

This is what the readme says:

"The installation script creates a new option group called "nCode Image Resizer Options" in which you can enter these values."

But that doesn't show.