Help on security mechanisms needed

Hi all I have these few questions I would like to have answered as I am stuck

1. I am running McAfee 8.7i. It updates well when a client is connected directly to the Internet but fails when connecting through a proxy which runs on port 8080. Is there a way how I could make it update via proxy?
Answer:

2. Is there an antispyware program which autoupdates on its own just like an antivirus and if possible updates via a proxy as well?
Answer:


3. Does anybody knows of a way how I could block access to the USB ports of some of the clients connected to our company domain?
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4. Is there a system which we can use so that we will be able to see the users in which sites they go...in a form of report? and also block access to bad web sites.
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You could copy and paste the above with the answers!!

That is all.
Thanks )

Update Manager may be unable to udate McAfee Anti-Spam if you access the Internet throught a proxy sever.
To solve it Download & apply the patch
"MSKproxy.zip" on desktop, and extract the content for the zip file
save the data to (windows 2000/xp/Vista) "C:\Program Files\McAfee\MSK\"
Double-click copymskupd.bat,
and after completion restart the system.

Just an opinion;

Dump McAfee and run Avast! (AV) and Comodo (the firewall portion only.)