BDE in InstallShield and BDE Merge Module

I want to upgrade my BDE and SQL Links to the latest 5.1 version. I
downloaded the BDE update but is is asking me to use a BDE merge Module to
update my BDE files. What is a Merge Module? The readme talks about using
InstallShield to run this. I am using Install Shield Express and it did
nothing with the BDE_PRO.MSM file.

Does anyone know how I can apply this BDE/SQLLINKS update?

Thanks for any help...