For the Logfile problem try:
PerlSetEnv EMBPERL_VIRTLOG /embperl
and
<Location /embperl>
note the slash before embperl
For the other problem I would try
<FilesMatch ".*\.epl$">
SetHandler perl-script
PerlHandler HTML::Embperl
Options ExecCGI
PerlPostReadRequestHandler My::ProxyRemoteAddr
</FilesMatch>
Gerald
