Hi there Danny,
Floor: you may have applied the wood material over an existing texture but VRay is stiil rendering the old one. Try removing the underlying material from your "in model" library and update the wood material in the VRay material options window.
Light: try using the map attatched. It was posted here a while back (can't remember by who, forgive me). Place it in the transparency map in the diffuse section of your light base in the Vray material options window. Turn your transparency colour to white (edit: oops, I meant to say black).
Wall: play around with different maps and reflection settings.
Hope this helps,
Ed
Lightmap.png
