I actually think your 1st design is far better than your 2nd.
Applying a bunch of dribbble.com trends to a website is not design, nor will it do you any favours.
Here's a few examples: - The image. The first one communicates your service. The 2nd just freaks me out a little bit, what does it communicate? - I like how your original design was contained. It had a feeling of folders/filing which reminded me of files/libraries. Now you're using 960.gs it's all a bit scattered, particularly with the misaligned latin book and copy. -The only element that stands out to me on the 2nd design is the copy in the footer. This is useful to know and instantly communicates how effective your service might be.
Your first design could use some improvements in a number of area's, mainly the copy and UI. Yet you've focused the majority of your blogpost and redesign on aesthetics.
Unfortunately you've gone from a web service that looks as though it was put together by a developer, to a web service that looks like it was put together by a developer and a terrible designer.
Looking at other web app's designs is the wrong way to design. Going on dribbble will do you no favours. Look at your users and think, what will make their visit more enjoyable/desirable/effective etc etc.