Fix for the "New" icon on the message index

After I made all the changes noticed the section is under @todo - [WIP], but well here it is:

![ff25before](https://f.cloud.github.com/assets/6107569/1711300/183f2638-614a-11e3-8157-bbee104ba08f.png)
![ff25after](https://f.cloud.github.com/assets/6107569/1711302/2270d1c4-614a-11e3-9d79-877e7084683c.png)
![chrome31before](https://f.cloud.github.com/assets/6107569/1711303/268f8a48-614a-11e3-93c0-bc12ff26f202.png)
![chrome31after](https://f.cloud.github.com/assets/6107569/1711304/2a746746-614a-11e3-9ee8-60fee20575a0.png)
![opera12 15before](https://f.cloud.github.com/assets/6107569/1711307/33d9ba7a-614a-11e3-9bfe-005786c45ffc.png)
![opera12 15after](https://f.cloud.github.com/assets/6107569/1711306/337a73ee-614a-11e3-9857-fc36746235ab.png)
![opera18before](https://f.cloud.github.com/assets/6107569/1711309/464cdf3e-614a-11e3-9f8b-5d81ed93bb66.png)
![opera18after](https://f.cloud.github.com/assets/6107569/1711310/48a697c0-614a-11e3-907c-e27fc2401c1a.png)
![ie8before](https://f.cloud.github.com/assets/6107569/1711313/4e8d537c-614a-11e3-9c10-f82b4785e0d5.png)
![ie8after](https://f.cloud.github.com/assets/6107569/1711314/5093fcf2-614a-11e3-90b0-b33dd7b806e5.png)