AMMullan is right, there are no such packages on SuSE 9.1 Personal.
The easiest way to install them ist to add an FTP server to the yast installation sources.
Yast -> Software -> Change Source of Installation
Add -> FTP
Server: ftp.suse.com (better one of it's mirrors
Directory: pub/suse/i386/9.1 (you need to adjust this if you entered a mirror above)
To install the software, simply choose the 'Install and Remove Software' module.