Is it possible that my firewall is causing file download to blocked and causing them to show as corrupted files? If so, then what would be the best way to configure my firewall to avoid this? I am using McAfee total firewall (with the full package of anti virus, spamguard, etc.). Do I need to tell it to not shut off a certain port? Or to allow a certain kind of connection? I mean, i have it set to allow Limewire as an accepted program.

Anyone that could help would be much appreciated!!!

You don't need 2 firewalls so disable yoru XP firewall & configure your other firewall using this: http://www.limewire.com/english/content/firewalls.shtml

For corrupt audio files see: T3 Spammers; mp3 Bit-Rates Versus File Sizes

Thanks you two.