Only if you downgrade the Steam executable to V1.00 or V2.00. The latest Steam version (V3.0+) uses a different .exe that CLEO does not support natively.
To download and install the CLEO scripts for GTA San Andreas v2.00 Gta Sa V2-00 Cleo Scripts-zip Download
Most "CLEO Scripts.zip" files contain or .csi files. Here is how to use them: Only if you downgrade the Steam executable to V1