Hey Credo,
yes, the widgetized front page is meant for cases where the top and bottom widget areas are needed, there’s no possibility to combine all three (including the sidebar) on a single front page; you can use the [COLUMN] shortcodes to subdivide the layout of the content in case of the widgetized front page and thus emulate a sidebar though.
Regarding your second question: not sure I understood the situation fully: could you please provide the URL of the page in question? Thanks!
Sincerely,
Andrii / Satori Studio