[Zope] KnowledgeKit

[frida@i386.net]

Hi all,
i'm a newbie. I've installed knowledge kit in my zope and used it for sometimes. 
And then, i forgot if made something to this product, but now KnowledgeKit 
is not seen in the Add list product. It just show up in a certain folder.
 
I mean for example, when i create a folder, and i want to add this product,
KnowledgeKit do not show up in the Add list. What's happening to my KnowledgeKit?
Pls give me a clue. 
and last, when you reply, pls make a cc to my email.

TIA ! 
-frida-
ps : sorry for my english 
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