I'm transferring my site over to Americommerce and I want to carry over an advanced SEO method that helps improve rankings in Google. The method is to use rel=nofollow tags in the links to my pages like Contact Us, About Us, and other generic pages (as shown in the example link below). The purpose of doing this is so you don't pass page rank to pages that don't sell anything. Passing page rank to these pages dilutes the page rank you can pass to the pages you really want indexed.

    <a rel="nofollow" style="text-decoration: none; font-weight: 700" href="http://www.intercomsonline.com/aboutus.htm">

I'm afraid without nofollows I could lose my number one ranking in Google. So is it possible to do this with Americommerce

What is the rel="nofollow" link attribute?

The rel="nofollow" is an attribute you can set on an HTML <a> link tag, invented by Google, and adopted by others. Those links won't get any credit when Google ranks websites in the search results, thus removing the main incentive behind blog comment spammers robots.

See Preventing comment spam on the Official Google Blog.

From that description it sounds like it only affects the ranking, and the Google robot may still follow the links and index them. If so, it is different from the robots meta tag NOFOLLOW semantics.