No there was nothing strange.
I must say that the new blogger formatting tags tended to misbehave anyway. There were always millions of duplicate <div align="justify"> tags which needed deleting to enable the formatting to look correct.
And the stray tags weren't visible in my blogger post boxes. I think I'll just have to reformat the dodgy posts manually.
Is there any quick way of amending the image paths of the pictures (see July and August posts, I have put September ones into my site directory and re-done the links) so that they display? They came in via Hello into blogger and don't display.
Finally, now that I have text in the site, I note that my menu bar is appearing below my posts when I pick a month in the drop down archives in IE (at work, but not at home). And on the home page the menu starts below my post text in the menu bar. Do I just need to tweak the pixels on the #content and #menu widths to sort this? Or have I completely borked the gemini template?!!