Perl 5.8 woes

I upgrades to Perl 5.8 with the .pkg linked on the Exim/ClamAV article.
After this broke my modules and my Webmin interface to my perl modules i ended up reverting to a backup of my hard drive.
I got the courage to try again and now I am about to revert to a backup again because I am not sure how to get comfortably back to my old .pm setup. Now I read that the authors of SpamAsassin recommend against Perl 5.8.
One thing that was a comfort factor for me was mt webmin interface to the perl modules. Now when I try to access the Webmin Perl module I get:

Error – Perl execution failed

Perl lib version (v5.8.0) doesn’t match executable version (v5.6.0) at /System/Library/Perl/darwin/Config.pm line 21.
Compilation failed in require at ./cpan-lib.pl line 6.
BEGIN failed–compilation aborted at ./cpan-lib.pl line 6.
Compilation failed in require at /builds/webmin-1.070/cpan/index.cgi line 5.

any ideas on how to get the Webmin module working?