Something

127.0.0.1 - - [24/Jun/2007:12:05:36 -0400] "GET /~chewie/webtop/" 200 660 "-" "-"
127.0.0.1 - - [24/Jun/2007:12:05:43 -0400] "GET /~chewie/webtop/" 200 - "-" "-"

The 660 is %b, the amount returned to client.

[Sun Jun 24 12:04:58 2007] [warn] child process 17497 still did not exit, sending a SIGTERM
[Sun Jun 24 12:04:58 2007] [warn] child process 17499 still did not exit, sending a SIGTERM

That's what showed up the error log (from earlier attempts, note the timestamps.)