[CentOS] HP Smart Array B110i SATA RAID Controller Driver

Hi

I am trying to install CentOS 5.6 on HP DL 180 G6 which has HP Smart
Array B110i SATA RAID Controller Driver. I have 4 * 500 GB SATA HDD
and configured RAID 1+0 using System BIOS, the BIOS detects usable
disk space as 940GB disk space, when i start installing the OS, it
does not detect HP Smart Array B110i SATA RAID Controller Driver

As per http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&prodTypeId=15351&prodSeriesId=3884339&swItem=MTX-ee8b3f5c09a44b8aa259d07d3d&prodNameId=3884340&swEnvOID=4004&swLang=8&taskId=135&mode=4&idx=1

Is there a way to get .iso file during installation of CentOS Linux ?

Please suggest/guide

Regards

Kaushal