I have gotten BootX to start a Suse install, and am trying to follow the instructions on the web page Suse Linux from Internet.

However when I enter the IP address of the ftp server (I've tried both of them ... 152.2.210.121 and 64.28.67.101) I keep getting "failed to connect to ftp server."

How can I find out other servers to try?

You can find a list of mirror sites at http://www.suse.com/us/support/download/ftp/int_mirrors.html