poweredge 1750, RH 7.3, bcm5700 does not work

I tried to rebuild the driver as rbaldwin-77 said but I can not find the driver for bcm5704 (I got this infomation when it was in RH 9 by "cat /proc/pci") in Broadcom's website. The bcm5704 is not included in the list! How can I try to get my NIC work with RH 7.3? (I have to return to RH 7.3 because glibc version problem in RH 9)

Any idea are deeply appreciated.