Simple "insert into mysql database" from form input (via ajaxSubmit, form & databse already exist)

I'm using a responsive CSS form template off Codecanyon ([login to view URL]) which I want to use to simply add 3 values (name/company/email) into an existing mysql database. The form uses the ajaxSubmit function but by default only includes a simple "send email" php function. Help needed within 24h so please only reply if you can do it in that timeframe.