HJT log attached. Is there something I can read that gives meaning to the paragraph prefixes: R0, R1, R3, 02, 04, etc.?

Click on the link in my signature and visit the HijackThis section.
Everything you need (to know) can be found there, including my HijackThis log file analyzer.

You can also do an on-line scan of your Hijackthis log file try here http://hijackthis.de/index.php

Links to all the language versions of the online log analyzer are in my HJT section.