Before starting, here are my system specs:
I am running wordpress on the bitnami software stack for wordpress, versions 3.4.2. (Bitnami comes with it's own apache installation.)
I have an interesting problem. I re-installed WordPress, and the installation was successful. However, I didn't want to lose the themes, plugins, and content I had from my old installation. So, I tried to swap out the 'apps/wordpress' folder. When I do this, I get a 403 security error. I gave all permissions to all the subfolders in my bitnami installation. Any ideas?