need help overall

Hi im trying to figure out the following issues:

1. how to create a homepage redirect link on my home menu cat

2. remove search bar in the header

3. create sub categories

Hi!
The first and the third problems can be easily solved if you read the following pages:
http://codex.wordpress.org/Manage_Categories_SubPanel
and
http://codex.wordpress.org/WordPress_Menu_User_Guide.
These features are provided by WordPress and it is much better to find a solution on this issue on WordPress forum. To get rid of Search box in header you have to remove the code from the file top.php located in the directory of the theme:

<div class="menusearch" title="">
                <?php get_search_form(); ?>
            </div>