On 11.5.10.2/Redhat Enterprise version 5.2, Running Autoconfig adconfig.Sh Perl, Error While Loading Shared Libraries: the libdb.so.3: can't open shared object file: no such file or directory

Solution:

with root:
create a link, ln -s /usr/lib/libdb.so.2 /usr/lib/libdb.so.3

Enjoy