Insert RSS en the sidebar

Hello!!

Well, I have a blog. I use WordPress and I want to put a feed RSS in the sidebar (the list of the RSS).

WordPress have a plugin to do this, but all the titles of the widgets that I put, have de same style CSS, and I want to put differents styles for each one.

I’ve searched on Internet and I found a way (for example using Zebrafeeds). I uploaded a file that a have to put in my host, but now I dont know what I have to do. I hope you can help me.

Thanks you! 😉