I'm even worse... Wondering if it is going to break my 3.5.1.
I've tried updating several times to the new 3.7.x and it breaks some things on the site that I haven't been able to figure out how to fix... like my multicolumn category pages...
Feel free to have a peek and tell me what I'm missing if you like. I couldn't figure it out. I tried using a template posted, but it only works for one page. I couldn't figure out how to get a second category page to work. (I use 2 custom category pages with my current setup for the "available dogs page" and the "special medical fund" page.
Im really feeling like Im getting stuck here, but ever time I try and install the new version, I get frustrated and switch back.