Here is how it would work:
Check POP3 email box (set username/pw and interval in code)
Read subject line and place in var1.
Read 1st line in body and place in var2.
Open text file [url removed, login to view]
Place var1 as the third line Moving all other lines down
Place var2 as the fourth line moving all other lines down
Check to make sure there is a max of 20 lines and delete the excess from the bottom of the file.
Save the file.
Delete the email
Oh, of course, ASAP please