Assign a style to a template

Hey guys,

Probably this is a very basic question, but I can't figure it out..

I have a template which I renamed, but the style is referring to the old template. I can't get it to work that the style refers to the new (renamed) template.

How can I assign this style to my own template? I tried everything to accomplish this, but this doesn't seem to work.

I included a picture, to make myself clear. You can see that he is calling the template with the name Ja_apollio instead of my own template name.

I hope someone can help me with this.

Thank you!