I'm by no means an expert in such matters (especially where suse is concerned), however you ought to be able to install Suse Linux 10 (with 2.6 kernel) then download a vanilla source 2.4 kernel and recompile it using the correct driver for your raid hardware for use in the suse environment.
Any thoughts anyone?
Update : On second thoughts it probably won't work. Par example : If there have been significant changes in the kernel environment (which there was between 2.4 and 2.6) then whatever core binaries sit on suse10 will probably need the correct (and newer) kernel core that is placed in 2.6 . Of course newer binaries may still support older modules (where the kernel is concerned) and so it might work, but I would expect you to get errors.