I believe it is a waste of space on your computer to safe them but if you really want to then this is what you do:
1. Open a new message and copy and paste the message board that you want into it.
2. Go to the bottom of the new message box and click Use HTML, what you will see now is what you will consider a lot of jibberish but no worries, just place your cursor some where in there and then press Ctrl plus the A key on your keyboard at the same time, all will then be selected, then press Ctrl plus the C key at the same time, all has now been copied to your clipboard.
3. Now go to your computer and open Notepad and then make sure your cursor is blinking in notepad and press Ctrl plus the V key on your keyboard, all has now been pasted into notepad.
4. Now save it to where you know you can find it and name it something that will make you recognize it for later use.
5. When you want to use them then you open them, make sure the cursor is in the body of it then press Ctrl plus A, then Ctrl plus C, now go to the new message that you have opened up in your groups and make sure that the Use Html is clicked and that the cursor is in that new window and press the Ctrl plus the V key. Then uncheck the Use HTMl box and voila there is your message board, ready to do with what you want.
Again though I will say that it is much easier to just copy and paste right from the group here.
Hope this helps
Sherree