Jacco,
I have been following this thread discussion. May I suggest that you consider a reliable template that is designed to work properly and especially with built in support and testing for StackIdeas extensions from the template provider. Some template providers are better than others and support their template customers to make fixes.
Based in your current template which is obviously not up to quality standards, sometimes you have to weigh the time wasted trying to fix a problem template vs. getting a new template so you can progress forward. Imagine that if this mainbody area of the template you are using is not working and is a problem, what future problems will arise with this template. I have been in a similar situation as you with a template that became more problems than it was worth. I found it best to switch to a reliable template from a top quality template provider, which saved me huge trouble and lost time, not to mention all the time wasted from seeking the help that the StackIdeas team members had to expend on helping me to get the troublesome template to work. The StackIdeas Team bends over backwards to resolve issues, but if they can't fix it, it is a huge indicator that it is time to get another reliable quality template, that is supported by the template provider. May i suggest you look at these templates, as I know the template providers give excellent support for their template customers.:
1. Bow Themes RT Magazine -
http://stackideas.com/blog/bowthemes-releases-new-joomlate-template-supporting-easyblog
You can read more in the recent blog post and see what it looks like and how the template provider is working to see it support EasyBlog etc.
2. JoomlArt Purity III - new reflexive free template that is designed to work with major extensions such as EasySocial and Easyblog and best of all it is free.
http://www.joomlart.com/joomla/templates/purity-iii
3. Three templates that are responsive and designed to work with Easyblog from Joonlart.com
http://stackideas.com/blog/three-joomlart-responsive-templates-with-easyblog-styles