Ok, here's the deal. I'm currently at version 2.0.5. I would like to upgrade to the latest, but since the current installation I have was my very first, I did it not knowing really what I was doing, and there are a lot of hacks and tweaks implemented that I didn't document.
So what I would like to do is install a fresh copy of WordPress and start from scratch. I want to install all the plugins from scratch too, as well as redo any hacks or tweaks I need and document it as I go so that upgrading in the future will be easier.
But I don't want to lose all my posts, pages, categories, and archives. Can I successfully import all that stuff into a fresh installation that may be completely different from the installation it came from?