I have the same problem with the blank page when trying to run avatar_import.cgi. Here's the error message from the Apache errorlog:
Can't locate HTTP/Date.pm in @INC (@INC contains: ./ ./Modules /apache/cgi-bin /apache/cgi-bin/Modules /usr/lib/perl5/5.00503/i386-linux /usr/lib/perl5/5.00503 /usr/lib/perl5/site_perl/5.005/i386-linux /usr/lib/perl5/site_perl/5.005 .) at /apache/cgi-bin/avatar_import.cgi line 880.
Thanks.