Order Form
This Order Form - is a Google Documents TEMPLATE - you have hundreds to choose from
https://docs.google.com/templates?q=order+form&sort=hottest&view=public
After you have saved it and modified it to what you need
IF YOU are going to put it on your WEB SITE - you have to SHARE it - Public on the WEB - everyone sees it
Create a new Page > Insert > Spreadsheet > Select the Spreadsheet
This is basically the VIEW - you can't update this
Scroll to the bottom of the screen - you can click the TABS to see other worksheets in the Spreadsheet
To Edit the Spreadsheet click the OPEN option under the Spreadsheet TABS
You may need to add a LINK to the Spreadsheet - and add the people you want to be able to update it.
We call this a FORM - but it is not a TRUE FORM in the sense that you can add to it with-in a web site.