That is a pretty old project - what I found dealing with a Pocket MVP version optimized for the 6651 goes back about six years.
(People have been migrating to BetaPlayer/TCPMP since then, which is built on the Pocket MVP source code.
) I haven't had any luck finding anything current either. Maybe you could talk to the folks over at wincesoft.de to see if they're willing to set it up.