[Centos] kernel with multi-LUN SCSI support

I am running CentOS 3.1 and everything is working beautifully except my
HP12000e tape library that requires multi-LUN support.  Every time I
re-compile the 2.4.21 kernel with the multi-LUN SCSI option, I get the
multi-LUN to work but something else breaks.

Is there a pre-compiled kernel somewhere that is similar to the stock
CentOS kernel except that it includes the multi-LUN feature?

thanks!

paul