I have an original 360 windows media center remote (long white remote) and am unable to fast forward through movies playing on the 360 thu WMC, the ship button advances the movies by 30 seconds, is there a way to use the fast forward/rewind buttons on this remote.
If I recall, it all depends on the file format. Some formats for example, straight MPEG2/AC3 in a MPG container hates FF/RW. WMV plays nicely with FF/RW.
It's one of the many reasons that MCE is kind of terrible. Do you also have a PS3 by chance? While the system overall is a piece of crap, it does make a far better local streaming device than the 360. It also makes a far worse interwebs streaming device.
Will the files play through the dashboard instead of MCE? The dashboard does FF/RW far better than MCE, but it's picky about format. The dashboard just needs a DLNA server to see, which you're likely using for another one of your streamers already.