Hey Michael,

Thanks for getting in touch with us! Please find the response to your inquiries below:

1. Please provide with info about how to update Easy Blog up to 5 version

If you are upgrading from 3.9 to 5.x, you may read the guide here, http://stackideas.com/docs/easyblog/administrators/upgrades/upgrade-easyblog-3-9-to-easyblog-5

2. Please provide wtih most successful sites with EasyBlog so that I could get ideas for designing and ASLO please provide wtih url where I can purchase the best EasyBlog templates.

I strongly advise that you play around with our demo first at http://easyblog.stackideas.com . This would give you an insights on the html structure of the new EasyBlog 5

Also, you should setup a test / staging site before upgrading your live site directly