Running SLES 9 with a 2.4 Kernel?

Hello list, I have a server currently running SLES 8 on a 2.4 kernel. I'd like to upgrade to SLES 9, however due to some kernel modules (Tivoli) I can't use kernels above 2.4.19-340. Can anyone confirm if you are able to install the 2.4 series (YaST?), and does SLES 9 operate happily on it? Thanks! -Patrick