Upgrading Firefox on SuSE 9.1

Hello list, I am running a SuSE 9.1 Pro system. For lots of internal reasons we are not able to upgrade for at least the next year and will stay on 9.1. We want to upgrade Firefox from 1.0.x to 1.5.x. If I go out to rpm.pbone.net and check the requires for the package MozillaFirefox-1.5-3.1.x86_64.rpm I get a million unprovided dependencies. The 9.1 system is up to date with the exception of the kernel which is version 2.6.5. Is there a way to do this? Am I going for the wrong package? Are there one or two packages that would provide the needed libs? All comments welcome. john