A version of ##.##
here indicates that iODBC couldn't fully load the driver to interrogate it about its version. Among other installation errors, this may mean the driver library (and/or a library on which it depends) has incorrect permissions set, or there may be some library incompatibility at some layer.
Further troubleshooting would require review of the ~/Library/ODBC/odbcinst.ini
(User) and/or /Library/ODBC/odbcinst.ini
(System) driver registration files; screenshots of the columns not visible here (note the horizontal scrollbar); output of otool -L
against each of the driver libraries in question; and/or other information. Such troubleshooting is not appropriate for this site; I would recommend pursuing assistance through the driver provider.
Worth noting -- my employer maintains and supports iODBC, and offers alternative ODBC drivers for MySQL; you may want to take advantage of the free two-week trial.