Andrew,
You need both the Framework and the plugin components (it's a standard plugin architecture). In the case, the plugin is SAP CONTROL CENTER 3.3 FOR SRS. The framework is SAP CNTRL CTRR FRAMEWORK 3.3.
I'm not sure how you performed the installation, but the product installer should understand the fact that the plugin has a dependency and may have installed both. If you can run the SCC server then it sounds like it was fully installed.
Look in the $SYBASE/SCC-3_3 directory. If you see multiple subdirectories, such as log, bin, services and a number of other directories then the full Framework was installed. If this did not happen, re-run the installer in custom mode and select all of the SCC optional features.
- Peter