^^^ The reason I mentioned editing is because he may want to change some fonts or colors in the style sheets for instance (that's the .css files in your template folder tuscani) which isn't always covered in the CMS.
With Zen Cart, you can set up PayPal right in the CMS so no coding is needed. You can also set up products and shipping, create and edit pages, define page tags, manage customers and their orders, produce reports, etc. There's also a few free SEO URL plugins (it basically changes your page URL to include key words that you want search engines to find tuscani) and authors will typically install their stuff for you for a few bucks if you don't know how to do it yourself. ZC has a ton of features but are there in a thrown together kind of way which can be a bit overwhelming to new users at first... but you get used to it.
Oh and speaking of search engines finding you... you can start by telling them where you are...
http://www.google.com/addurl/?continue=/addurl
http://www.bing.com/webmaster/SubmitSitePage.aspx
It would also be well worth flipping a few bucks to the place below to do a full security sweep, update the site with the latest security patches and do some folder/file work to protect your site from people/bots who prey on ZC sites.
http://www.zencart-ecommerce-website-design.com
Hope this helps...