I think this is caused by a misconception on your site.
You can not add a site to DMOZ. Only editors can do so.
What you have done is suggest a site. One of the editors will look at the suggestion and decide if we want to include it in the directory. Because of the volunteer nature of DMOZ we can not predict which editor will look at the suggestion and when this will happen. It could be today, tomorrow, next week, next month, next year. Nobody knows.
You can ofcourse try everyday if you can find it already in the directory but personaly I think there are better ways someone can spend his time.
<<added>> jim was faster ...