How to reorder the inbuilt driver loading in SLES 11 SP3 during OS boot

Hi, In SLES 11 SP3 32bit , is there any way we can reorder the inbuilt driver loading during OS boot. On boot, I want to load first my driver which I installed as rpm if my driver not claim the controller then then I want the inbuilt driver to load and claim the controller. As of now in built driver loads first and claiming controller. Made few changes by editing the initrd image like making init, run_all.sh and other shell scripts changes but no use. Can you please help me. Regards, Sandeep