If you look in /includes/templates/abbington_mega/common/tpl_mega_menu.php, lines 243 to 279:
Code:
        <li class="contactus-li"><a href="<?php echo zen_href_link(FILENAME_CONTACT_US, '', 'NONSSL'); ?>" class="drop"><?php echo HEADER_TITLE_CONTACT_US;?></a><!-- bof contact form -->
                       
            <div class="dropdown_2columns">
                
                <div class="col_2 firstcolumn">
                    <h2><?php echo TITLE_CONTACT_US;?></h2>
                    <p><?php echo TEXT_CONTACT_US;?>
		    </p>
                   
                     <div id="contact_form">
                    
                        <div class="message">
                            <div id="alert"></div>
                        </div>
                        <?php echo zen_draw_form('contact_us', zen_href_link(FILENAME_CONTACT_US, 'action=send')); ?>
                        
                            <label for="contactname">Name<span class="required"> *</span></label>
                            <input name="contactname" type="text" id="contactname" size="30" value=""  /> 
                            
                            <br class="clearBoth" />
                            <label for="email">Email<span class="required"> *</span></label>
                            <input name="email" type="text" id="email" size="30" value="" />
                            
                            <br class="clearBoth" />
                            <label for="enquiry">Message<span class="required"> *</span></label>
                            <textarea name="enquiry" cols="40" rows="3"  id="enquiry"></textarea>
                                
                                
                            <div class="form_buttons">
                            <input type="submit" class="button" id="submit" value="Submit" />
                            </div>
                        
                        
                        </form>
The items I've highlighted in red should be in language files.