book the tour form & photo gallery

Hi,

How do I change the “Book the tour” content (First Name, Last Name …etc.) and “BOOKING NOW” (button) wording?
example on “http://travelwp.physcode.com/tours/discover-singapore/”
Basically, I cannot find where the form located to customize it.

Also, the tab on the gallery. It shows some Chinese on the tab, I need to change them to English.

Photo Gallery

Thank you.

Judy