Please do forgive me, if I don't quite understand your question. If you're asking if SpySweeper is worth buying as a three-fold attack, I can't say I know. I know very little about SpySweeper. As I think you may know, there are different software which detects different kinds of "malware". Maybe if you list what you do have, it would be easier for people to make recommendations. I'm not sure what you meant when you said, 'that there be a couple that the bad ones that ATOS said that those did not remove yet to get them though'. If you were saying certain software can't remove the newer threats, that would partially be correct. These applications are updated frequently to try to keep up with the newer and/or more stubborn and "nastier" threats. If what you have installed doesn't detect it, or remove it, there are certain methods and tools, which will. Again, I think I am misunderstanding you. And again, I do apologize. I'm sure someone else might be able to interpret this in a different way and perhaps provide you with a more appropriate answer. If you list what you have, we can suggest what you might need.
Sorry I can't be of more help. It's not for lacking of trying.