BleepingComputer.com: Updates blocked

My Avira antivirus Stopzilla, Glary Utilities are not able to update. There is something blocking the the updater. I've gone into the Win XP firewll and allowed the exceptions but they still will not update. Any help would be much appreciated.

I'd suggest one of these free online scans to ensure that you're not infected:
(Be advised that some of these scanners will pickup things in "quarantine" from other anti-virus programs - so review the results carefully)

http://housecall.trendmicro.com
http://www.pandasecurity.com/homeusers/solutions/activescan/
http://www.kaspersky.com/virusscanner Scan Only - no removal
http://www.bitdefender.com/scan8/ie.html
http://support.f-secure.com/enu/home/ols.shtml
http://us.mcafee.com/root/mfs/default.asp
http://onlinescan.avast.com/
http://ca.com/us/securityadvisor/virusinfo/scan.aspx
http://www.eset.com/onlinescan/