I just downloaed 0934c from the forum and both methods work.
Oh, sorry again. I've deleted my installation folder (backing up the voicecommands.xml file) and made a clean installation of the 0.934c version and now it's working fine. Thanks for the help James!
Also I have purchased the $35 license as I told you, I'm having lot of fun playing with VC and you deserve the money for this flexible and powerful program. Congratulations!
Keep up with the awesome work James and looking forward to the next release of VC with the cool new features for MediaPortal (if you need any previous-beta tester just send me a PM) ;-)
Best regards,
Aitor