I found this tool VERY helpful for a new fiddlest. It's worth the trouble !!
I would have been happy to pay for it but the company has dissappeared. It was a $19.95 shareware program.

To help minimize liability I am not distributing a binary.
I am distributing instructions on how YOU can patch your own.
The instructions are in a .patch file and will be applied by a free utility called patch.

Also check out for free http://www.jalmus.net/spip.php?article29 to help drill your reading music notes.
Notation Musician has been awesome too and is commercial but very cheap.

You MUST have .Net 3.5 SP1 Running (on Vista or XP).

Download .Net 3.5 SP1 from http://www.microsoft.com/downloads/details.aspx?familyid=ab99342f-5d1a-413d-8319-81da479ab0d7&displaylang=en

XP Seems to run fine.

Vista has a few issues but is still very usable, just annoying.

1) File Open Dialog is Broken (don't to Open or Save), but you can edit the .tsf files with NotePad and just double click on them to load them.
2) When you close the application is hangs. Just use task manager to kill it.
3) There is an odd issue that once you edit a new file only the first copy is used.
It's like it has a cache somewhere. To get around this save as a new unique file name each time you edit it with notepad.
4) If you decide to edit the .TSF files in Program Files on Vista with User Account Control enabled then right click on Notepad and choose run as Admininistrator

Mic quality does make a difference.

It has issues with some of the lower frequencies (e.g. B3 and C3) try a different Mic or remove the trouble notes from the .tsf file

To Install:

Just download and run tutor_fixed.msi (this is a repaired install kit that installs the demo) It should run fine in demo mode

To patch:

Step 1: download patchdemo.zip
Step 2: Unpack the zip file into the folder you installed tutor in.
Note: patchtutor.bat, vtutor.patch, and patch.exe MUST be in the same directory as vtutor.exe (not in a sub directory)
Step 3: double click on patchtutor.bat

Tutor should now run normally.