Is the tag UNIQUE because it's not going to display the same word 831230210540657035 times.

I have videos with the word "df2" more than once, but yet the tag df2 only appears ONCE in the list.

http://www.df2videos.com/tags.php

The tag needs to be unique. If you have that many words or a lot of words already in the database, it's probably because the tag is not unique. Try using a word not found in the database.