I have discovered today that all the pictures from the blog entries have been replaced by a grey triangle.
On investigation It turns out when Picasa and Google accounts merged, the blog pictures were stored in one of the albums and this got deleted by accident by me.
Ive re-added some pictures to the recent blogs where Ive been able to quickly. As my blogs go back some years would be too time consuming to do.
I realise that your reading of my past blogs will not be as informative without the visuals and can only apologise for my error in not fully understand the close tie-ins between Picasa and Google blogs.