how to do an RSS feed in the opera browser

i don't use internet explorer anymore, so i'm not sure how it works in there. but in opera, first you have to go to a webpage with an RSS feed. blogs at blogger.com will do it. then, look up in the line where the URL is written. there's a little orange square button with white rounded lines on it. push that, and a popup menu asks if you want to add this. i don't know the difference between RSS and ATOM. choose either one. dialogue box: 'would you like to subscribe?' = yes. then a 'feeds' menu appears at the top, between widgets and tools. go click in that menu and that's where your RSS feeds are. i never used to know how to do that until just recently.