A dumb question... BSplayer and ffdshow

I have both BSplayer and ffdshow installed, but it seems like BSplayer won't use ffdshow codec. At least according to GSpot. How do I get it to work? Sorry for such a dumb question.

[adicoto]

First of all, you don'tneed ffdshow if you have the apropiate codecs.
Second, you must tell ffdshow what type of codecs to manage (what codec to replace).