Finale Notepad used to be free up to the 2008 version so I have the versions from 2005 to 2008 and would have recommended those. I don't want to recommend the 2009 version because it costs money. All the versions are very similar so I imagine that the 2009 version will do exactly what the 2006 version does. There is a slight
chance they've added (or taken away) some features since it's no longer free. Finale brings out a new version each year where they change the file format slightly so that the older versions can't open the new files, although the full version has an export to music xml function to slightly get around this.
Carl wrote:An older version I have (ver 2006) does not have a guitar instrument to select.
The problem you say you have with no guitar part in the 2006 version is definitely a problem with your installation because as you see from my post above ALL the versions have a guitar part, even the 2006 version.
However, I may be misunderstanding you. If you mean that the sound when you play back your score doesn't have a guitar sound then you are probably right. I think Notepad only uses the piano sound for playback.
If you are willing to pay $10 for the 2009 version the advantage you will have is that you can open and edit all Finale files up to that version which other people may send you. Other than that I believe you are wasting $10 since you already have the 2006 version.
Why not download the free 2009 Demo of Notepad which you can use for 30 days. If you are happy with it then pay the $10 and register it. If you aren't happy with it, unfortunately the 2006 version won't open the files you've created.