I finally found some time to try and fix seeking forward and backwards with the number buttons. As far as I have tested attached libraries should keep audio and video in sync after seek.
To install extract zip file and put the files onto your azbox with the same directory structure as in the zip file.
So basicly you will put libgstdvbaudiosink.so and libgstdvbvideosink.so into /usr/lib/gstreamer-0.10/
Please leave feedback only with regards to seeking, other functionalities and bugs are still in the works.