I am having a problem with a couple of sites I was trying

I am having a problem with a couple of sites I was trying to hide my admin username and in the site fluffey.com its ok in the blogs. Although if you go to the site computerpcrepair.com or whysale.net
In the blogs area if you click on my post name it reveals the admin username how do I stop this from happening.
It should read only what I want to display publicly something is wrong it should not reveal the admin username.

Regards Vincent Juliano