The clients can be downloaded here:
http://www-3.ibm.com/cgi-bin/db2www/...oad.d2w/report
From the web site above:
"A note about DB2 client packages
The DB2 client packages available from this site are full install images and are always maintained at the latest FixPak levels. You can use a client package to install a new client "from scratch," or to upgrade an existing DB2 client to the current FixPak level."