Hey guys. Need help from the linux guru's if this is possible.

What I normally do is go to ithinkz.com, search for my youtube video there and below everypage there is a direct download link. when saving I just add an .flv at the end and once saved, I can view the video with mplayer.

I tried doing the association hack (posted here) and everytime I click on the download link it doesnt open up mplayer as its supposed to. is this even possible?