what's up with blogger?

So, what's up with blogger?  Maybe it's been awhile now but they changed things up.  I am still resizing my photos to the same size that I always have, and, yet, they look much gritter.  Also, the old templates are gone.  I liked the long, narrow column for text and images because I felt like it was easier to read and cleaner.  I know you can adjust the width but things don't work out right when I make it narrower.  I want to go back to my old template!  I'm so technologically clueless....but I'm gonna mess around with things again and see if I can't get it working for me....