spy.do - how can i get rid of it?

Snap.do is on my computer & I have done everything possible to get rid of it to no avail. I deleted the program & all its components & installed avast, scanned the whole computer & it is still there as the search engine (I also removed it as the search engine). Any help is greatly appreciated! Thanks!

Please attach your log. (AdwCleaner…!!)
Instructions: http://forum.avast.com/index.php?topic=53253.0