Hi, I'm a Wordpress beginner. I have a self hosted blog using a free theme that was available at the time. I did a search and found that the author has a 2.0 version available for purchase. I'd like to buy and upgrade but worry about losing stuff on my blog. My understanding is that I would upload the zip file into Wordpress. I think that would only make it available for me to then choose, along with whatever other themes are available to me. So if I switch to the 2.0 version, my posts should be okay because they're stored in a different file, right? But what about my widgets? Will they be deleted? In my current theme there's no automatic upgrade button, so I worry that not everything will be upgraded correctly (Chateau theme) like my posts' featured images, etc or my banner picture, favicon. Am I worrying about nothing? Can anyone give me some advice? Thanks!