Now that I finally found an awesome template to work on my new blog about organization, there is a stupid problem

Normally the index always shows all posts made, but this one only shows posts from one category.

I bought this theme: Our Magazine - WordPress - ThemeForest and have contacted the designer already, but so far I had no reply That's why I might get an answer faster when I post the problem here.

See the readme: http://themetation.com/demo/guide.pdf (page 5; at the bottom) to see how we should choose which category should be displayed on the homepage.

All I can think of right now, is to post all the posts in one category but than there is no need for the menu anymore -- or a menu with only one item sucks too so.. anyone with a solution?

Thanks in advance!