Hello and welcome back to the blogging world!! :)
Your blog looks like fun! I love the picture you posted, your doggies, Leo and Evie, are adorable!! I'm following your blog now, although I didn't see your followers on your blog, so I went to the 'Follow' key in the top Blogger Bar to follow you.
In order to get your Etsy items on your blog you need to add the HTML/JavaScript... You can put an 'Etsy Mini' on your blog by going to 'Etsy Mini' in the side column under 'Promote' in your Etsy and just pick what you'd like, then copy and paste the code to your blog. And/or you can go to CraftCult:
http://www.craftcult.com/heartsitems.php ~ Type in your store name and then choose the Widget you would like, copy and paste that code. If you're not familiar with CraftCult there is a list of things to choose from (Widgets is one of them) right across the top of the page, beginning with HOME. Hope that helps, but if you have any questions, please feel free to contact me!! :)
Here's the link to my blog, I have both of those things on my blog, if you'd like to take a look:
http://trinastrinketts.blogspot.com/Happy New Year!
~Trina