Thanks for this. It's working just fine but the speed is a bit low.
Edit: I've tried to stream an avi file from my Desktop and it's very slugish

I also tried to manually mount using:
mount -t cifs //<server>/<path> /<your>/<local>/<path> -o user=<user>,pass=<pass>,ip=<ip of server>,direct
Recommended by this thread:
http://talk.maemo.org/showthread.php?t=38536

It was even slower. Anyone able to stream video from a mounted location?