WordPress.org

Are there any template functions? Yes, there is a function the_disclaimer(), that will display the disclaimer.

Any other function I could use? Yes you might want to use the get_disclaimer() function, this will return the disclaimer and not echo it.

Will it use any SQL Query? Yes, the disclaimer is added in the options table, but not autoloaded.

Is there any language file? Not yet, I hope to add one in the next version.