Thanks 'eric93se' but from the way you worded your reply it sounds as though you misinterpreted my post. I knew that the PCI-Express slots on the motherboard are backward compatible I was referring to the game card interface which I could find no info on whether it supported PCI-Express x1.0, sorry if it was the way I worded my post that got you confused.
Thank You also 'Matth' I was not sure if all newer cards had to adhere to backward compatibility as some descriptions (for newer cards) simply say that the interface(s) supported is PCI-Express 2.0 and do not list 1.0 or 1.1 plus I could find no forums or other product descriptions for the card that said it supported previous PCI-Express slot versions - they all pretty much used the same description, probably from the nVidia.
Anyhow I have purchased the card although I have to wait due to Dabs needing to order from manufacturer, so we shall see. If I remember I will report back incase other people should need this information.
:)Thanks Very Much!