I have now created my theme and uploaded and very happy with it apart from one problem. On my blog page the sidebar (sidebar2) works fine with the widgets like "categories, search etc" showing up in the correct place and with the style I created. However, as soon as I navigate to a an archive page such as "Categories" the content of the sidebar is right at the bottom of the page and loses the style - it looks terrible. I have a feeling it is because there is an extra <DIV> tag somewhere but I have no idea where to locate it or fix it!
An example is here: http://www.whartonfamily.co.uk/category/my-ancestors/