Where do I input my full website HTML code for a free account if even possible? Also, are there any limitations to it?

Browser: Firefox

OS: XP

You just upload the files to your site. The limitations are the ones you were told about before you signed up - advertising, 5 mb, filetypes, etc. If you have any more specific questions?

But I already have a full code and I am only intersted in just using only that code and having the website fully take in the code and show me what Publisher shows me- if possible that is :)

Browser: firefox

OS: xp

If you used Publisher to build your site then use Publisher to make the changes and then upload the changed files.