Comodo Firewall Pro 3.0 And AVG Anti-virus Update Problems???

I just did an install of the latest version of Comodo Firewall Pro 3.0 two days ago on a Vista OS and have the settings at Train with safe mode. It appears that when I update the AVG antivirus, the updates are blocked by the firewall??? (the AVG antivirus icon in the system tray is greyed out?) When I go to the files that are apparently in limbo it appears?? that I can get them to be accepted as “safe,” although I do not know for certain if AVG is actually updated? (The AVG antivrus icon in the system tray is no longer appears greyed out??)

However, for the last two days, when I check updates for AVG Antivirus the same “supposedly” downloaded updates “appear” as updates???
Should there be any specific settings to ameliorate this apparent problem with AVG antivirus updates?

Your assistance with this would be greatly appreciated.

Thank you!