7
Easiest thing is using Mastop Publish ;)
You can find it at
http://www.mastop.com.br/conteudo/open-source/mastop-publish-english.mstpThis is a very handy and awesome module, capable of doing almost anything.
In order to add a HTML file to your site, simply install the module, go to blocks, disable the Main Menu from System, enable the Mastop Publish Main Menu, and then go to the module, choose Contents, then Manage HTML files, and below you can choose to upload an HTML file easily.
You can also use TinyMCE to make pages if you choose Add Page instead of Manage HTML files