Scheduler code is embedded in core Maximo/TPAE code and is only available with the upgrade of TPAE.  Here is a list of the 2 versions

Scheduler            TPAE
7.6.8                     7.6.1.2
7.6.7.3                 7.6.1.1
7.6.7.1                 7.6.1
7.6.7                     7.6.0.9
7.6.5/7.6.6         7.6.0.8
7.6.4                     7.6.0.6 - first Plus versions
7.6.3                     7.6.0.5
7.6.2                     7.6.0.3
7.6.1                     7.6.0.2
7.5.3                     7.6