Great you saw the installation difference.
Really, Take some time on the manual, it has a step-by-step installation and configuration guide. CBSubs is a very powerful system, and the manual will give you many hints and ideas to possibly double or more the revenues from your site
BTW:
For blank screens we have a FAQ:
www.joomlapolis.com/content/view/3949/58/
And for what's sometime displayed another one:
www.joomlapolis.com/content/view/3738/58/