changes needed in component.

hi there, i am working on a website rightnow. it is made on Jooma. [login to view URL] It is a Limo rental website. i used this compoment called Vik car rantel from joomla extentions. i need few changes in it: - # of passengers ( 1 - 20 ) in search module - pick up time (under the date and from 12-11:45 by 15 minute increments with an AM/PM option beside) -instead on" notes" in Form. Can you put there pickup adress. - if someone wants to book a return trip. can you put an option and double the payment. please goto my website and take a look at it. thanks