Lustre discuss - Mar 2008 - upgraded REHEL5.1 problem with lustre rpm's

I''ve just upgrade the kernel on my RedHat machine to
2.6.18-53.1.13.el5, how to migrate over the lustre 1.6.4.2. rpm''s that
I had installed with the old kernel. I tried to erase and re-install
them but that didn''t work..

Thanks

Jonathan