Thank you for posting this

the only thing I had to do in addition to your instructions was to edit /etc/ld.so.conf to include the path for libct.so.4, which is installed by the freetds installation portion. This location is /usr/local/freetds/lib

and then, run ldconfig

this worked for me using RHEL 5.5, Perl 5.8.3, MS SQL Server 2005