Do you mean a number of forums divided into a few categories and sub-categories? If this is what you need, you can use topics and labels - have a look at the homepage of this course for example. There is a category of forums called "Moodle modules - help and discussion." which has two sub-categories: "Activity Modules" and "Other Components".
Hope this helps,
Przemek
Forum
Forum for category or sub-categories
Αυτή η συζήτηση κλειδώθηκε κι έτσι δεν μπορείτε να απαντήσετε σε αυτή.