Forum Moderators: open
I would say apply for it... and if you don't get approved most category mods will give you feedback as to why.
You mean, meta-editors? Outside the ODP, it's pretty confusing to call ODP'ers "moderators", since nothing that we do at dmoz.org resembles what anyone else would call "moderation". Don't help people think "categories have moderators", it'll just confuse them.
Categories don't have anything. But people have permissions. (There's a very very big difference, both conceptually and perceptually!)
Some editors have permissions to give OTHER people editing permissions. Those permissions are called "meta-permissions", and colloquially, people who have such permissions are (loosely) called "meta-editors".
There are different names for various bundles of meta-editing permissions. One of the more restricted and less common bundles is called "catmod", but it's better to think of category editing permissions (usually associated with a category) and privilege-granting ("meta") permissions (usually associated with the whole directory).
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[edited by: engine at 3:56 pm (utc) on Mar. 17, 2006]
[edit reason] No Sigs See TOS [webmasterworld.com] [/edit]
There is nothing you can do to "make" anything happen in any particular way or order. What happens next depends on the editor that looks at the update request, what they decide to do, and whether they are able to edit in both categories, or not - and no-one can have any clue as to who might pick up the update request, nor what they may be thinking when they do so.