I've tried submitting my site to the Open Directory a couple times-- the latest info I had said they'd index you typically in 2 weeks. I waited 1 month after the 1st submit, and have submitted again (been at least the 2 weeks...)
But I noticed that the category I have submitted to does not have an editor. How can I ever get listed if there's no editor to look at my submission?
Become the editor yourself! but I wouldn't worry to much about the lack of an editor, I submitted a site last month and the category had no editor within 2 weeks the site was listed, or could consider sending an e-mail to the next editor up from your category
hurlimann has it right. The Editor in the category above will probably address your site. In some cases, however, you may need to go up 3 or 4 levels before you get to an editor, so it could take a while.
Be reasonable. Give them a month to 6 weeks to get to your site. If you haven't seen anything by then, contact the editor by e-mail with a polite message asking for help. That will usually get the ball rolling.