Augusta would not have been for sale for quite some time through P3 (like before 2011, for sure). As for the course file, if you have it - the name is irrelevant if you're running the latest software version. As long as it is a valid .p3p file it will work. Names were only critical if you were playing online.

With that said, if you're using an older version of the software that required a dongle - the name MUST match exactly.