In all of the SEO grading tools that I use I get flags for the underscores in the image urls when using the "thumbnails" element to create a gallery in a post. Google does not like underscores in urls. Only dashes.
http://www.allaccesscoach.com/images/easyblog_articles/9/b2ap3_large_Eric-Church-Breaks-Record-2.jpg
The underscores are added in the easyblog folder structure part. Is there a way to change this or is there a fix for this in the works?