Glad to of been a help Sir,To remove the advanced search you can try this for search
Did you try removing or commenting out this section in the navbar template?
PHP Code:
<form action="search.php?{vb:raw session.sessionurl}do=process" method="post" id="navbar_search" class="navbar_search"> <vb:comment><input type="hidden" name="s" value="{vb:raw session.sessionurl}" /></vb:comment> <input type="hidden" name="securitytoken" value="{vb:raw bbuserinfo.securitytoken}" /> <input type="hidden" name="do" value="process" /> <span class="textboxcontainer"><span><input type="text" value="" name="query" class="textbox" tabindex="99"/></span></span> <span class="buttoncontainer"><span><input type="image" class="searchbutton" src="{vb:stylevar imgdir_button}/search.<vb:if condition="(is_browser('ie') AND !is_browser('ie', 7) AND !is_browser('ie', 8))">gif<vb:else />png</vb:if>" name="submit" onclick="document.getElementById('navbar_search').submit;" tabindex="100"/></span></span> </form>