Customize dzoic website

I have an old single page website, I need this fixed in dzoic homepage, some customizations to enable dzoic homepage features like member login and menu surround, with the old single page website in the middle. 2. Create extra menu tab on all pages to reopen default page with the same old website page as is on the home page. Note- homepage disappears once member logs in. Need to be able to re-access this, via a new prominent menu tab. 3. Proper image gallery to replace dzoic default style. 4. Few customizations to pages and clubs