[xwiki-users] Tagging a page in structured mode

Hallo, i followed this instruction http://extensions.xwiki.org/xwiki/bin/view/Extension/Tag+Application to define some tags for tagging in structured mode. Because of the statment "Bundled With XWiki Enterprise, XWiki Enterprise Manager, XWiki Watch" i did not download and install the XAR file. Evrything seemed to went well. But if i klicked on the plus sign near the label 'tags' on a page no tags were suggested. I am expected to get a list of the predefined tags. Also no tags were showed in the document information box in the edit mode of a page. XWiki version is 3.5. Any ideas what went wrong? Or is maybe the tagging in structured mode in 3.5 broken? Maybe somone can help. Thanks in advance. Richard