My search works on home page but not sub pages

anyone have any ideas?

Is this correct?

<?php include(TEMPLATEPATH . '/searchform.php'); ?>

That one is correct.
Some servers, however, don’t work well with this:
action="<?php echo $_SERVER['PHP_SELF']; ?>"

Try a newer version of the searchform file, e.g. from the latest default theme.

that did it Moshu.

I changes the search.php file to:

<form method="get" id="searchform" action="<?php bloginfo('url'); ?>/">
<div><input type="text" value="<?php the_search_query(); ?>" name="s" id="s" />
<input type="submit" id="searchsubmit" value="Search" />
</div>
</form>