How did you change it to red...would you mind posting this...as I have an N810 and the same issue. Would love to have it set for red for calls, blue for email, and green for IMs using Pidgin and the LED plugin.
PatternCommunicationCall=30;1;0;r;9d80400002ff03ff02ff03ff71080000;9d800000 PatternCommunicationSMS=30;1;0;r;9d80400002ff03ff02ff03ff71080000;9d800000