Donna,
I have been without power since noon yesterday, sitting in a coffee shop with WiFi right now so I dont know when I will be back online.
Your sons computer shows no signs of infection, what spybot found may have been remenants of one that was present but its not present now.
With the problems your having with your own computer, I am afraid we are at a dead end, the only thing I can suggest is to do a compete format and reinstall of the operating system, if you feel that would be over your head than you may need to bring it to a shop and have it done professionally.
That might not be a bad idea for your sons computer also, it might be best for the both of you to start with brand new installs.
Ken