12-13-2008 10:25 PM
12-13-2008 11:32 PM
D means the message delivered.
R means the message was read by the recipient.
If the message is delivered to the recipient then you will see a clock on the icon if the recipient doesn't read it within one minute. Once the recipient reads it the clock will go away.
If the recipient doesn't receive the message (he/she is out of service, on the phone, etc.) then you will get 3 little curved lines until the message is delivered and read. You can also check the contact info for the status of the contact.
Your CD should have had a full user's manual in pdf format that would have had all that in it.