What's the point of going Bluray (and presumably HD) if you aren't going to watch it in ****ty Stereo using ****ty cables?
The only way in this case to make it happen would be to use audio outputs on the TV itself...if it has those.
Otherwise take back the Bluray player and get one that is also a sound system like the Samsung ranges with HDMI outs (and preferably INs so you can connect the DSTV to your sound system).
Yes, in a perfect world I would get that samsung HDMI surround sound system, I would also get a 55" Samsung LED LCD TV, DSTV PVR etc. But if I could afford all that, why would I buy the Cheapest Bluray on the market??