I installed the tags and catalog_tags extensions but couldn't achieve my aim, which is fairly simple: tagging catalog items via Front End.

What I did was
- installing the extensions
- adding a tag-type field in the catalog I needed to be tagged
- adding the tag field in the edit module

What I got is a page with the "tags" field and a border, wut no way to edit it.
Attached you can find a screenshot of what I see on the page.

Thank you in advance for any suggestion