Welcome to the Q&A Forum

They  no longer appear in searches as we put a "no follow" on them..that is fine we don't want to rank for the older product but the URL has history if you will.

I assume the old pages had some external links from product reviews? Since you want to harvest that link juice for the new pages, if you don't want to do a redirect you can set rel="canonical" on the old page to the new pages; though that means the older products will still be visible in SERPs, the SE juice would pass to the new. Better though to redirect to equivalent product pages.

Noticed there's no sitemap, or at least it's hard to find... http://goo.gl/ULW69

Also, I googled "Machete 1213" and got this as #1, as we would expect: http://ridesnowboards.com/snowboards/machete-1213

1. Expandable divs. You can feature each image as the visible portion of an expandable div. It's fairly easy to code.

Check out @ipullrank Michael King's  presentation which touches on the subject: http://www.slideshare.net/ipullrank/ux-seo-lets-be-friends-by-michael-king

This is entirely white-hat btw: it's creating a cleaner user experience, while allowing visitor to read more if they want, without being directed to a new page.

2. Put text portion, such as a feed with excerpts from a blog, "below the fold."

That said, be sure to name your image files with relevant keywords as well as appropriate alt-text and description. And don't forget the OGP and schema markup too.

Googlebot is most definitely able to run scripts: http://www.seomoz.org/blog/just-how-smart-are-search-robots How is your link positioned inside the script? Is there visible anchor text anywhere in the widget/pop-up window?