New Property Metadata not searchable / not indexed

The real big problem is the new properties that I created don't get indexed. I am not sure if I'm right but when I go to

System admin

> system config

> Knowledge Management

> Index Admin

> TREX Monitor

> Display Index Details

I don't see my new properties in the document properties table.

In the config of my new properties, I have the indexable box checked. Am I missing something that needs to be config to activate this? I thought the new properties would automatically be taken into account for the search according to this help page http://help.sap.com/saphelp_ep60sp2/helpdata/en/75/e000861cb8ad4b8e4f19dd6416346d/frameset.htm

Pleas help. Urgent. thanks in advanced.