EDUP EP MS150ND Wireless Adapter (NOT WORKING)

My MS150ND Wireless Adapter that I purchased, claims to be compatible with Mac but is not!

The adapter came with a mini disc.

Installed everything but the Ralink Network utility will jot open and System Profiler does nto even recognise the physical WLAN adapter.

I found out that the EDUP product belongs to a RTL8188SU Chipset and I installed that as well but nothing happened.

All the things I have tried:

RTL8188SU Chipset driver for Mac

(Came with adapter) Ralink Install Guide (Mini Disc)

MS 150ND driver for Mac (supposedly)

Website: http://www.szedup.com

Can someone please help me get this wretched device working?

Thanks

///Please Note: The disc said that

"Note for Snow Leopard Users: If you got install failed, please reinstall until you get success, we are still using 10.5 install because we dont have 10.6 install we will update as soon Apple update it"

This product was purchased on eBay