heres a demo installer of a slightler earlier version maybe it will let you upgrade from the demo to the full version?
heres the webpage for it
http://web.archive.org/web/20130505031650/http://www.gvox.com/master_tracks_proRecording and Playback Features
-64 tracks with independent track looping
-Quickly audition and select sounds for virtually any MIDI synthesizer from Master Tracks Pro's editable Device list. List includes General MIDI, and several popular synthesizers. Customize existing lists or create your own
-Bank Select lets you switch to alternate banks of sounds in your MIDI instruments
-Assign any controller like volume, reverb, chorus, or pan to any recordable fader for an automated mix down
-Step Entry: Input notes in step time with selectable duration, velocity, articulation, and MIDI channel for each note
-Looping: Loop any number of tracks independently
-Automated Punch-in: Automatically enter and exit record mode at predetermined "punch" points while your sequence plays
-SMPTE support: Synchronize your music to film, video, or audiotape
-See an accurate display of your sequence's elapsed time, stored tempo, playback tempo, and current time signature
-Control playback and recording; select step-time note duration from your MIDI instrument
-Import, export, and explode Standard MIDI files: Type 0 or C type 1
-Big Counter is perfect for monitoring your sequence at a distance
-Multi-Port support allows for up to 256 MIDI channels
Editing Features
Hot Keys add key commands for transposition, quantize, editors, and more
Velocity Window shows every note's velocity
Graphic note editing: Click and drag with your mouse to change a note's pitch, duration, or timing
Note Velocity Stems give you visual velocity editing
Event List Editing: Accurately edit note, controller, and time data from an alphanumeric list
Change Filter: Simple, one-step editing of notes by their location, duration, pitch, velocity, or channel
Cut, Copy, and Paste editing: Insert or delete any selection to modify your music as easily as editing text with a word processor
Individual Track Lock lets you transpose your song without affecting drum parts
Change note duration, velocity, channel, tempo, or time signature globally or for a specific section
Quantize and Humanize: Tighten up timing errors or loosen robotic, step-entered sequences
Fit Time: Automatically adjust tempos to make any section fit a specified length of time
Zoom in or out: See data in macro or micro views
Graphic editing of MIDI controller data complete with ghost notes
Snap to Grid allows you to quantize your step entry with a mouse
Control the music's feel: Slide selected regions forward or backward in time
Song Play List enables you to load and play a whole set list of songs for live performance
Sync your music to SMPTE via MIDI Time Code with a MIDI/SMPTE interface
Use the Event Editor window as a cue sheet
Supports all SMPTE formats for video and film production
Save and load MIDI System Exclusive data (voices, drum machine data, etc.) with Pro's built-in Sysex librarian
Edit and print your music on a Grand Staff in the Notation Editor
Record and play WAV audio directly using Window's MCI commands
Trigger MCI media events during playback at any point within a sequence
Control multimedia devices or play WAV audio files
Support of Windows 3.1 Multimedia Extensions: MIDI Mapper and MCI (Media Control Interface) commands
this page contains a link to the 684 updater which your supposed to use after installing the 683 version
http://web.archive.org/web/20130505130505/http://www.gvox.com/gvox_downloads#dwnld_mtpthe installer for the demo works fine, but the updater, it wont run for me on windows 7 64bit im assuming it may run on 32bit OS... to be able to patch up to 684
it also installed the the demo into the wrong folder.. 32bit apps are supposed to go into Program Files (x86) folder not "Program Files" dir
System Requirements
Windows
Pentium class CPU or greater, 32MB of RAM, SVGA video,
PC running Windows 98 or higher (WinME, 2000, or XP preferred)
then again im not even sure if thers a way to enter a serial into the demo to go from "demo" to "full" version