These are extra links when you logged in as admin. It is a preview link on admin pages and there is a edit link on the individual products, look on preview images.

Preview link on Products in Admin
Edit links from category pages on frontend
Edit links from product pages on frontend

View others
That affiliate code thingy
Admin edit from frontsite and preview links
Image rollovers for your products on Categories
Joomla Category Page Options and Quantity
Mysql Backup with sql code onscreen
Opencart quantity and options on Categories
Products Admin preview link finally here
SEO Title and Meta for Products