Hi!
If by tweaking you mean replacing it with my search bar, then it is possible. You can create a new ajax search pro, or use the one you already have.
Try to replace this code:
<div class="searchform">
<form method="get" id="searchform2″ action="<?php bloginfo('home’); ?>/">
<span class="searchfor"><input type="text" name="s" id="s" class="s" value=" G day! Enter quick search here by business name or keywords" onfocus="if(this.value==this.defaultValue)this.value=";" onblur="if(this.value==")this.value=this.defaultValue;" />
<small class="text"><?php //echo 'Pets, Beauty and Gadgets’;?> </small>
</span>
</form>
</div>with this:`
`
After replacing you should see the ajax search pro where the other search bar was. Don’t fogrget to backup the code first, in case you want to restore it!
And if you want a similar layout, you can try the one of the “curvy” themes on the ajax search pro settings page, they similar to your yellow search bar.