Please go to the following directories depending on what product you are using:

ftp://ftp.software.ibm.com/ps/products/ibmentsuite
Files in this directory structure pertain to the IBM Enterprise Suite.

ftp://ftp.software.ibm.com/ps/products/ibmsuite
Files in this directory structure pertain to the IBM Suite.

ftp://ftp.software.ibm.com/ps/products/ibmsbs
Files in this directory structure pertain to the IBM Small Business Suite.

Check the /fixes/nt/ subdirectory for more information on directory structure.