install problems

Okay -- I've installed mod_ruby and eruby on a number of different
occassions without a hitch.

I recently upgraded my Apache to 2.0.50, and I am getting this error:

"Starting httpd: httpd: module "mod_ruby.c" is not compatible with
this version of Apache (found 20020628, need 20020903).
Please contact the vendor for the correct version."

I figure "okay, so I need to rebuild mod_ruby"

I do so ... and I get the *same* error.  Then I think, maybe I need
the latest version of mod_ruby? So I grab it, build it, and install
it.

Same problem.

I'm not sure what to do next.  Any suggestions?

--Matt