Don't worry about it. Once you up your number of visitors, you should probably get some people who would click your adsense. You might want to vary your ads by say adding horizontal or vertical ads.
juz keep working on it and clicks will come . looks for better placement if you can . dont worry about it atm .. keep working / promoting as the traffic increases your clicks will surely increase .
100 impressions and zero clicks is not uncommon. Just market your site and put good content on there and people will come.
My blog very common gets 500 impressions and zero click. My blog has a 0.44% CTR. http://diggnetwork12345689.blogspot.com/
as others said this is quite ok. look at my story - one of my sites ctr is 2.5% (stable over 2 month period), then yesterday, it dropped to 0% for a good portion of a day - google registered 1000 page views and 0 clicks Then, it all returned to normal... Go figure
Looked like i only saw that one ad across the top? You need to but diff ads and place them myabe in between the posts??