You can check that item works just calling the URL from your browser, and than lokking at page info.
Anyway, the items I've created are for "exact match", and this is the reason I've added an initial caret ^ (means "start with"), and a final dollar $ (means "end with"). Now you can create all the items you need. With an item you can match more than one URL, as a whole category. And using macros you can make your meta info dynamic.
To learn something more about regular expressions, take a look at Quick Guide, available in the download section. As soon as possible a new version of Tag Meta will be available, and I will update the tutorial too.
Best regards,
Luigi