Problem with sendmail update

[Mervyn Passmore]

Hi,

Hope someone can help. we're stuck trying to update Sendmail from 8.14.3 to
8.14.5

We've made & installed 8.14.5 and both the new and old versions seem to be
installed and running according to PS. Whatever is starting sendmail is
initiating the old version.

How can we remove the 8.14.3 version or get the 8.14.5 version to run? Our
PCI compliance is failing due to issues with the old version.

Help much appreciated, 

Thanks

Mervyn