I've seen virtually no character animations in Blitz at all, by anyone.
http://www.freewebs.com/smiff/b3danimations.htm
Its quite easy getting CS animations from Max to Blitz using Valve's SMD exporter.
You really are doing it the difficult way !
If you have any character studio animated models you want converted to .B3d just let me know. I'll be happy to oblige.