Don't worry, your computer looks clean to me. This is something that confuses and misleads a lot of users. If you take a look at those infections, you'll see that they are in the System Volume Information folder. That folder stores all of your backups used by System Restore. Basically, what that means is that you had infections that were cleaned and now their backups are being stored in the SVI folder. They currently aren't a threat to your computer. However, if you use System Restore to roll the system back, you may get reinfected. What you should do is clear out all of your restore points and then start a fresh new clean one...
1. Go to Start > Programs > Accessories > System Tools > System Restore
2. Click on System Restore Settings.
3. Check
Turn off System Restore and click OK.
4. Restart your computer.
5. Follow steps 1 and 2 to return to the settings,
uncheck Turn off System Restore, and click OK.
6. Create a new restore point and close the program.
System Restore will now be active again. If you would like to learn more about System Restore, go
here.