Thank you Tojones for the only helpful reply on this. I'm sure everybody was trying to be helpful, but repeating "just change your search engine back to google" wasn't the problem in the first place.
I just got Blekko from Cnet also, again I thought it was a trustworthy site also. I switched my settings and browser back to my personal preferences and Blekko would still open in a new window. I uninstalled it and removed it from my search engines yet it still appeared. This is the problem people are having with it so thank you Tojones.
If you're having the same problem, just read Tojones' answer, it's easy to follow and it should remove Blekko completely for you after you've uninstalled it.
Suffice to say, it's doubtful I'll be using Cnet again.