site-building help

i guess this is sorta a dumb question, but being a beginner to the whole computer programming world, it’s a question that i need answered.
i got this job building a site for a local business, and my boss wants to be able to take orders from his website. i told him i didn’t know how to do that but that i could learn… can anybody help? i’m familiar with html, if that means anything, and i’m a quick learner. still, if you answer, please use the vernacular so i know what you’re talking about.
basically, i need to know how to set up a page that will take orders for a place of business. any information would be greatly appreciated.
thank you!
-kimberly, 16