If you restarted in safe mode and did a full scan you SHOULD be safe. From that point on as long as symantec realtime scanning is set to scan all files it should quaratine anything malicious before it executes.
I used to man the symantec AV console where I work. It basicly showed the status of about 4,000 boxes and we dealt with daily ifections from a bunch of different viruses and spyware/adware (the line between the two blurred about a year ago). Based on my experience when I saw an infected file in the IE cache it was almost always traced back to a webmail account. We actually discussed blocking webmail at the gateway but there's just too many freemail sites to do that.
Sounds like you got it beat though!
I used to man the symantec AV console where I work. It basicly showed the status of about 4,000 boxes and we dealt with daily ifections from a bunch of different viruses and spyware/adware (the line between the two blurred about a year ago). Based on my experience when I saw an infected file in the IE cache it was almost always traced back to a webmail account. We actually discussed blocking webmail at the gateway but there's just too many freemail sites to do that.
Sounds like you got it beat though!