I can't see your screenshots, due to long-standing bugs with the crummy Jive software powering this forum. So I can't see exactly what Sophos found.
However, I can provide a few general comments. First, note that Sophos will not properly remove any adware, nor will any other anti-virus software that I'm aware of. Anti-virus software may remove some components, and that may be enough to eliminate visible symptoms, but there will probably be leftovers still active in your system.
Second, be aware that AdwareMedic will only find and remove installed components of adware. It does not try to find installers, which anti-virus apps like Sophos may detect.
Finally, if there are things that your anti-virus software detects that AdwareMedic does not, you still should not allow the anti-virus software to remove it. To delete such things, see:
How to remove infected files
(Fair disclosure: I may receive compensation from links to my site and software, in the form of buttons allowing for donations. Donations are not required to use my site or software.)