You apparently installed phplist in yourdomain/mail/Hitbear wrote:here is where the form is
www. easy big cash .com/ test.html
but i receive an error code when i try to subscribe to it.
However your form action refers to yourdomain/lists/ which explains the 404 error. So you'd need to change the form action url and refer to the correct directory, i.e. use "mail" instead of "lists"
IMPORTANT: Before you do that, you'd need to create at least one list, and activate it. This is explained in the docs. I strongly suggest you start with reading the Setup documentation. Remember, EACH step described in that documentation page is important. So, follow up on all the links in that page, otherwise you'll get nowhere: http://docs.phplist.com/SettingUpForUse
Basically my advice is to first get your system working as a standard system. If everything has been tested and works OK, then go one step further and customize your subscribe form.