I'm currently using the Avenue template, and I like it for the most part, but there are some adjustments I'd like to make that seem to only be possible in version 7.1. The guide for updating suggests switching to a template in the Brine or Bedford family before updating, but switching to any other template results in all of the content from my page disappearing and being replaced with the template preview information. The only things that seems to transfer is the title.
Since my website is primarily for photography, secondary for acting, there are a lot of photos and content that would take a ton of time to reupload (and some to even track down on my computer and backups again, since they are much older) that I would rather avoid if I can.
So I guess my main question is, how much content do I risk losing if I upgrade to 7.1 directly from my current Avenue template?