I am now using st with dvtm and I can scroll up and down in the current dvtm window using Shift+PageUp or Shift+PageDown, for the first time. I could never get this to work in xterm (perhaps a more savvy person could have) because xterm gobbled up the Shift+PageUp/Down key strokes for its own use.
I could use Ctrl-G then PageUp/Down, but that is really cumbersome to scroll compared to Shift+PageUp/Down. -- http://www.fastmail.com - Or how I learned to stop worrying and love email again