I'm happy that I could help you.

If you don't mind I have some more:
I think a 100% custom-designed link worth calculator would be a great oppportunity for the link baiting if it would be reliable enough to definite the prizes.
On the front page there are the most viewed and the latest links. I think only the domain won't give enough info about the listed sites. I think displaying the title tag with a smaller font size or somehow would be great and fewer clikcks will be required to make business.
Maybe with a bigger system structure it could be able to manage the link placement severeal time a day to protect the investors.
I guess the url rewriting wasn't the most important step in this development, but the site with static urls would be so nice.
