Joe, as per your request, this post is being written via WLW.
The following image is being posted via WLW:
WLW Placed Image
Note that our Blogger template is supposed to centre all images.
We will then post another similar image via the Blogger interface to compare the code between the two images.
This is the image placed via blogger:
Blogger Placed Image
Please let me know if you need any further assistance as we are more than happy to help!
UPDATE: Joe, note how the image posted via WLW does not display properly, it comes up in the Blogger editor though, but somehow it does not show on the blog itself.
Microsoft Small Business Specialists