SAP Best Practices: SAINT or SAP Best Practices Installation Assistant !!!

Hi I need to install SAP Best Practices Baseline PT V1.600 and with sap SME email I get a ppt that tells to use SAINT to install the baseline.

BUT when I read the "Quick Guide to Installing the SAP Best Practices Baseline Package (PT)", nothing is told about SAINT, insted is said to use a new tool called: the SAP Best Practices Installation Assistant and several steps.

My question is WHY two ways to install a baseline, both are needed or SAINT is the old one. If SAINT is the old one what does this new tool ???

Please Help.

Luis Pereira