For starters, my reply wasnt to you, note the "re:crusher75060"

If you are asking how to enable port 113 for identd in xp's firewall, this web page will take you step by step from finding network connection onwards. (which is the same url that HOBB1T posted to you already). If the prob is in a setting that comcast has that they allow you to web or telnet into to tweak, then they would have to tell you the addy/password to access it