1. Free pre-installed zencart is NOT a good idea.
2. Zencart website has list if recommended zencart hosts.
3. Can purchase very reasonably priced hosting packages.
(Send Lawrence PM)
4. Yes, you can have your own logo and template
i.e. Out of the box zencart demo store at
http://www.zencart.net/demo/
Same zencart program customised with templates
via ...click on any of the small images at
http://www.zencarttemplates.info/hoff.php