Glad it's all running well.
You should be pretty secure with that lot, and depending on user practices, more secure than the "average" user.
Quite a buzz getting a Windows 'pooter running nicely, isn't it?
Thanks to Tarq57 and Glenn30 for all the help. Avast, ZoneAlarm and Superantispyware are up and running plus Malwarebytes. No fights as yet. All seem to get on well with one another. First scans found 12 spyware and 38 malware -- all destroyed. System a little faster since delete of Norton and will be faster still when 1G stick of ram rammed in, (forgive the pun).