I can't update ultimate facebook

I spent about 2 hours trying to figure out how to update Ultimate Facebook. I’ve had it for a while and it’s says there’s an update but it doesn’t auto update and I can’t figure out how to update it. Monthly costs of 50 to 100 dollars aren’t possible. There’s lots of “Buying” angles on your website for plugins and support but for me, the little guy, this has been very difficult to find and figure out. There’s literally NO information out there on “How to update Ultimate Facebook Plugin” I mean I found absolutely nothing that could help me.