Just to be clear on this WordPress.com and WordPress.org are completely separate. WordPress.org installs are not a part of this WordPress.com community but he RSS Widget displays posts from any RSS feed.
I can see the posts in the feed itself http://130greene.com/feed/
Have you tried clearing your browser cache and cookies?
Now, I've added 130Greene.com to the Reader and it has a little RSS reader. Great, I thought. But none of the new posts ever show up in my feed.
If you are using AdBlock disable it.
If you are not using the secure https:// login please try using it
(1) How are you connecting to the internet and to WordPress.com? The way you connect to the internet (mobile, satellite, DSL, dial-up) and to your blog, and how many proxy server jumps etc. it takes to connect can cause problems. There maybe be problems with your ISP and/or with the proxy servers. Also note that the main dashboard isn’t designed to work with touch devices through the tablet and smartphone browsers.
(Are you using Talk Talk or are you using a satelite provider?)
(2) Exactly which browser and version of it are you using. If you don’t know click here to find out > http://whatsmyuseragent.com/