Any MySQL version is fine.
The SQL that ends up getting issued by VoiceGuide to backend databases is not complex and all database engine versions can handle it.
The configuration that needs to be done is also quite straightforward, with creation of database object and specifying the ADO.NET Connect string to it in VoiceGuide's Config.xml.
VoiceGuide will then run the SQL script that creates simple tables and indexes required in database (see in VoiceGuide's \System\setup\ subdirectory).
These tables and indexes can be created manually if desire - again,see the SQL script files which show what needs to be set up.
More information available here: http://www.voiceguid...rnal_config.htm