You can save the messages that you want to keep for refference. Go to file and click on save as. You can save the message on your hard drive or floppy disk and it will be saved as a txt file. You can read the file using a word program or your notebook.
Also the messages are never really gone. They are still there you onle see the last thirty days. If you go to the point where it says first message you will see the first message I put in the BB that started this and it snowballed. That is why I tell folks to go back and read all the messages if they have about 10 hours to kill.