Website - new look

I have just updated the website with the new minimialist "look and feel". This has mostly been achieved by changing the css and a few global "find & replace" operations but it was necessary also to edit the files to put the picture box within the main division. There may be one or two glitches. I will now check the pages to see that they are valid xhtml and valid css. That will iron out some problems; but if you spot any typos or strange behaviour of the pages, please let me know by email.