The original site is VERY different from what you see now. We had links and forums and headlines (rss feeds).
When you added a link you could specify if it was a "video" or an "article" or an "image" (among other things). But you couldn't actually upload an image on the site or watch an embedded video on the site either.
Here's an archival image from Pkmntrainerj showing "old style fanpop"
link
As Dazl says, Soapbox (Articles) was the next feature added as well as a specific area devoted to videos. Images were added next, then picks. Then quiz and now Answers.
We also redesigned the site in the Spring of 2007. So the "old style" fanpop only lasted for about 6-8 months before we pulled the plug and rebooted with a look that is much more similar to what you are now used to (though we've tinkered with that look a lot too).