How can I add a static column to product pages?

[mwack]

I'm an osCommerce noob, trying to move a site from the Yahoo! Store backend and keep it as intact as possible... basically what I need is some way to add a column on the right-hand side of product pages, and the ability to edit it on each individual product page (so that product A and product B are able to have different content within the column). Basically, I need to be able to do something akin to what's done on this website with the "You may also like...": http://moonstone-jewelry.com/silver-gold-r...-moonstone.html

That's the site I'm trying to port over to osCommerce, but I'm having trouble figuring out what I need to do to get that bit of code working. Any suggestions would be greatly appreciated