1. Now that you've uninstalled WAV2005, you can safely delete the entire C:\Documents and Settings\All Users.WINDOWS\Application Data\WinSoftware folder (and any other WAV2005 folders that might exist). That will obviously get rid of most of the quarantined infected files the other AV scanners detected. If you still have Norton folders hanging around, you delete them as well.

Once you've done the above, run the online scans again (try the Kaspersky and Trend Micro scans this time too) and have them clean up the leftovers.

2. For a free anti-virus solution, give AVG a try. For more options, a list of free AV, firewall, etc. programs can be found here.

3. Your HijackThis log is clean now.