i only paid for an ASUS Notebook Accessory Power Station for Asus V1 / V2 / VX2 Series Notebook for my VX2 lamborghini notebook. It has Audio out (S/PDIF). we was wondering if this would yield me with 5.1 approximate receptive to advice if i paid for outmost 5.1 speakers. Thanks in advance.

If the sound card is Dolby 5.1 and your speakers are Dolby 5.1, yes.
Your VX2 has High Definition Compliant audio chip which supports the Dolby 5.1 standard; so, your answere would be yes.