Create the HTML form first. Then work on getting values you want displayed on the subsequent PHP page. After you've got that, it's just a matter of wrapping your head in a good book or online tutorial and following directions/examples.
A few tips:
-- Remember to format your HTML as <tag key="value">. I.e. Don't forget encapsulating your values in quotes.
-- Remember to name each input
-- Don't forget a method
-- Start small, grow large. I.e. Start with a few input text fields, then add the comments, select boxes, radio buttons and the like.
~Brett