Ah, well a bit of perseverance and less wine has helped me out a lot!! Found a couple of good guides on line and some forum threads round the place that seemed to be getting the errors I was.
For those in a similar place as I was with this check out these links:
Pyrit setup - ivc wiki
AMD Developer Forums - Question: How do I install ATI Stream SDK 2.01?
AMD Developer Forums - cannot install ati sdk