Hello, Bruno!
Thanks a lot for MIGx!
I have PHP 5.4.6, MODX 2.2.4 and MIGx 2.3.2.
After setup and configuring MIGXdb - TV (by your tutorial) i have error: "Call-time pass-by-reference has been removed" in migxdb.class.php on line 31.
Applying this solution:
http://stackoverflow.com/questions/8971261/php-5-4-call-time-pass-by-reference-easy-fix-available (&$filenames -> $filenames on lines 31, 39, 45).
And all works fine.
I hope this helpful.